@Aaron Jones
@Levi T. is correct in that it is highly unlikely that bank would give you a loan for the reason mentioned above and also, because it is rare if not impossible to get a loan for a business that deals in speculation (especially without a proven track record). He also brings up a great point in that wholesaling is difficult. I agree with him that becoming a real estate agent is a more via able option.
I disagree with him in the aspect of not starting an LLC. Having an LLC provides a ton of tax advantages (Speak with a professional CPA that deals in Real Estate for that). They are a couple of hundred dollars to start and more than pay for themselves come tax time.
If you are going to be a wholesaler, I wish you good luck and success. If you are good at it, you can make a lot of money and every investor will want to be friends with you. As far as funding to assist getting you off the ground at such a young age, here are a couple of idea's. 1. Talk to family about your dreams and see if any would be interested in investing in you or even partnering. 2. Apply for a credit card to cover the cost until you can close a deal or two.
Make sure you do your research about the wholesaling career path.
Best Wishes,
Tim