$12,000, youth and - I am hope- drive is bringing a lot to the table.
So what can you do?
ACT!
If your biggest worry is getting a loan, go apply for one! I was in the same place about 8 years ago. I did not have an income but had saved up cash while in the military. I did not apply until I was sure I would qualify and I wasted a lot of time as I could have received the loan years before. I missed out because I did not know what I did not know. I decided I would not qualify all on my own based on what I had read. I was wrong. Read and research and then go and talk to two or three lenders and ask them for a loan app and what the likely hood of your getting the loan is. If you are worried about the number of inquiries on your credit report, then don't actually give them permission to pull your credit. Just talk to them. They are in the business of making loans. The worst that can happen is they will say no, and I did that to myself.
Now, before you can do that, you need to search for a property that you would be willing to buy. Learn all you can on this board but the most important thing is to act. If you are turned down for a loan and all you can do is make owner financed offers, then make some! $12,000 is more than enough to get into a house. My first owner financed deal was $2000 down and about $3000 in repair costs. I would never have found it unless I was out talking to sellers. Even if you are turned down you will learn. I never had an offer rejected until I had purchased 4 houses. I left a lot of money on the table somewhere...
Know what you can do and are willing to do because it will require sacrifice and hard work to start out with little. If you took your money and put it down on a new car; few people would be surprised. They might even admire you! If you buy a fixer house, everyone is going to think you have lost your mind. When you make mistakes, you need to be able to cover them with money or your time and often both. Know going in what you are willing to commit in time and money.
In summary, what you can do is act now. You will learn from these experiences. You don't know what is out there until you try. You should get dozens of no's before your first yes. It won't be luck that helps you succeed. It will be acting, hard work and perseverance. That is how I started a little older and poor.