Hey, Im 21 and graduating MTU this spring. I have lived through 15 flips in my life some of them duplexes. Its a great way to learn about the ins and outs of owning a home and learning how to deal with all sorts of situations on your own. Its a good conservative plan and will work if you stick to it.
If you want to get into bigger things faster start talking to people in your area. Let them know what your passions are, goals, and you may find a great connection in your area. I just finalized my partnership to go into real estate investing full time with a business owner who wants back into real estate but needs someone to handle the management of the business and commit full time. I am getting my realtor license and he is getting his contractors license. We will have our separate sides of the business to focus on which will work well, but also both know bits and pieces of the other parts so we can cover each other when we want to go on longer vacations in the future.
He also knows lots of people with money since he is a business owner in our area. He is trusted and the money guys are willing to work with him. This all came together by talking to people about what I want in life. Keep at it! Also, stay connected with me as I will be doing some bigger investments in the next few months as we get going. Ill be sure to keep the BP community up to date on everything.