@Maugno Mora The first thing that pops out after reading your post is that you give up too easily. The car thing didn't work you lost money and gave up. In business there are times when you will loose but you cannot quit every time you take a loss. You have had 15 jobs. That's a lot for a 25 year old. The best thing for you to do is to get clear about which direction you want to go in RE. Consider your losses tuition. Seems like the car business appealed to you only because you saw a quick way to make money. However, if your true passion is RE investing then establish your focus there. Always perform your due diligence and research things heavily before you go throwing money into a deal.
BMW's have expensive upkeep. Get rid of the cars period. Find a decent used car you can pay cash for and ride it until the wheels fall off and stack your cash. I would not suggest selling anything that is producing cash flow.
If I am reading correctly what you are left with are the mobile homes and the SF with the 25k loan. Use the profits from your rents on the mobile homes to pay off your debt especially if you don't need the money to live off. You ran out of money to finish the rehab on the SF and have to make a choice on what to do before the year is up. Ummm, I probably would suggest selling it and getting rid of that loan. You never mentioned if the apartment attached to it needed work as well. Since you have started some work on it already could you increase the price and come out with a couple thousand to put towards your debt? (Something to consider)
I'm going to tell you advice that I would give my younger brother. Hold off on the wedding. If 2019 fits your time frame and allows you to clear debt up and put yourself in a better financial position then wait. Is it an absolute must for there to be a wedding? Can you do something on a small scale or maybe a destination wedding on beach?
It's better to start off in a marriage without the financial burden of debt TRUST me. Don't be about that life. I was 22 when I got married and we both had crazy debt and didn't turn out well for us. WAIT!!!
Good job on staying frugal with spending. When I am focused on saving money aggressively, I always ask myself do I really need to buy this? Can I do without it. If the answer is no then it stays where it is. Sacrifice as much as you can. For me that meant cutting off my cable, downgrading cell phone etc. Your 20's is the best time to sacrifice and go hard towards your goals especially while you don't have a family or major responsibilities. When you reach your 30's you can start reaping the benefits. Good thing for you is that you are still young and you have a time to recover. All is not lost.
Find out where you can create life hacks. Operate off of a tight budget and find your investing niche and stick to it.
Best Wishes!