@Jeffrey Lester
I bought my first property in college. My advice would be, if you can manage to have a job and study, then get a job. You will need at least 1 year of income to qualify for a mortgage. Since you will only have a high school diploma, you will likely qualify as low income. Most cities have first time homebuyer down payment assistance programs for low income persons. If you were to use the down payment assistance to purchase a homepath property you would be doing amazingly well. You would have the city helping you with the down payment (normally either a forgivable loan, 0% interest loan or grant- the amount and terms vary from city to city) and you would be able to purchase a property before investor competition. All in all you would have beat out investors with little to no money out of pocket.
I did this and basically did what @Blake C. did and got a roommate to cover the monthly expenses. It was a great way to start. Be careful to make sure you can meet the residency requirements the owner-occupant and down payment assistance programs require and you'll be off to a great start!