You have some serious dreams and that is a great place to start. Dreams alone will not get you to the finish line so the question to answer is how to get where you want to go. Those plan will inevitably change because unexpected things happen and believe it or not even your priorities may shift over time. Reevaluating through the process is key.
First of all recognize that all advice from anyone is coming from their own personal experience. That is one of the reasons that getting diverse information from as many sources as possible is key to being truly educated on any subject. Not matter what you believe about formal education, life education is going to be pretty dang important no matter what you do. Life education can come from a vast group of resources and some of those can be formal education while most of them will not be. My thought here is not to push you any direction but just to get you to think.
Let's talk about college really fast. My first question would be why you don't want to go to college? Are you asking yourself the right question here? Is your goal in life not to attend college or is your goal to own a lot of real estate? Is your goal really to own a lot of real estate or is it to be wealthy and you don't really care which legal way you get there? The answers to these questions and probably many other similar or branching questions should guide your decision.
To better explain let me say first that we all suffer from these issues but often we don't act in our own best interest because the steps to get our end goal is not clear to us. Which do you care about more, not going to college or becoming a successful real estate investor? If the answer is real estate investing than you should completely forget your goal to not go to college as a start point to reaching your goal. Maybe no going will be a step you take but assuming you can reach your end goal and do that is going to close to options that really might be necessary steps to get to you where you want to end up.
If I were your age with the goal of being a real estate mogul with my experiences now I would do or consider the following:
-Read a boat load of information out there- books on wealth, books on real estate, magazines and journal that real estate agents and buyers read. Listen to podcasts and gather enough basic information to make myself dangerous. Study competing opinions so that you can piece together the whole argument and see both sides before you setting on your preferred.
-If I want to be a real estate agent- talk to as many agents in person as I possibly can. Ask them who the most successful agents are. Contact those agents and also ask them to meet with and mentor you with advice. How did they get to where they are? What steps did they take? What are the most important skills and how are they developed? Do they know any successful agents that didn't go to college? Ask for their information, contact them, ask to meet with them and ask how they did it or if they would do it differently. Also ask everyone if they know any successful real estate investors that do the kind of investing you are most interested in. If they do ask if those individuals might be the type of people who would give you advice on how to get where they are someday. If they would ask to contact those people, do so, repeat and keep building a network of knowledgeable individuals that do exactly what you want to do. Write the information down as you speak with everyone and review it. Come up with new questions to ask as you go along. These are the type of nuggets that you can start to rely on when the information is robust.
-Do the same thing as above with lending officers or investors who loan their money out to real estate investors. Ask who they lend to and what they look for. Ask what the background of the people they lend to is. They probably don't even know but they can probably find out. Ask them to introduce you to some of them so that you can get advice from them as well. Rinse and repeat with anyone in the industry that works around the type of people you want to be (insurance people, lawyers, whole sellers, landlords etc. You will find that if you let them talk, just want advice, don't dominate their time, are grateful and maybe even offer to help them for free if they could use your limited skills you will have no shortage of people open to sharing their thoughts with you. Some of those people could become good friends and business contacts in the future. You will stand out even more because young adults from the beginning of time struggle to get on the phone or go down to a brick and mortar location and make this type introduction.You will instantly look more serious about your goal. It holds so much more weight than emailing, contacting through social media or getting on a website like this. Those things can be good back ups if more direct methods are not working but should not be relied on.
All of the above is relevant because you will get a pretty quick idea about whether what you are hoping to do is a likely path to success. Now if you are seeing that almost everyone has a college degree except for a few outliers whose actions did not follow any particular course you can duplicate than its time to drop the lesser goal for the greater goal, suck it up, go to college and establish yourself in every meaningful way that will get you to where you want to be.
My personal advice is just one of many voices but I'll give it. Go to college part-time and as inexpensively but as high quality as you can. Keep doing everything I described above but take 2 or 3 classes while doing it. Also work like crazy and spend nothing. See if you can get your real estate license while in school. Build credit. Save a sizeable chunk of cash and then buy a place near to the campus your schooling is at, where you can house hack and rent a bunch of rooms to other college kids. The location and cost of real estate in that area will be a big factor in pulling this off. Ideally rinse and repeat through to graduation when you are hopefully sitting on several properties. Maybe you never graduate because your properties take off and real estate draws you in full time, no big deal the degree was never the goal but don't make excuses if staying is the more successful route. From that point you should be able to expand pretty systematically and by the time you're 35 or 40 you are a real estate mogal and you are buying apartment complexes, trailer parks, office building etc instead of SFHs. Real estate is not rocket science and in my opinion is the route gives a high probability of success if stay the course, buy intelligently and don't live lavishly.
Much more than I planned on writing but there it is. Personally I love the books the millionaire next door and millionaire mind combined with the mentality of Rich Dad Poor Dad. There is a lot of financial truth in multiple taught methods of not spending and yet still taking reasonable risks that make your money work for you. One last thing I will add is that thinking of college as a degree is wrong in my opinion. It is the contacts that you make there and ideally the way they teach you to learn that are the true value. Most wealthy individuals met their spouse, best friends and many of their business associates through their college education. This is all true for me.