In general credit is a crawl before you walk, and walk before you run. The standards for a large installment loan are generally above those for a small credit line store card.
I would not expect you to find any reasonable financing. Keep in mind, if you go with some small shady finance company it will most likely cost you thousands of extra dollars. They find all sorts of ways to charge you fees, "lose" payments and charge late fees, or just make errors and report you as past due, lose your title after you pay off the loan, on and on and on.
The larger problem I have is that you do have a good income, but at 19 you should not be so eager to get into debt and take a risk. Remember all debt carries risk. There is plenty of time for you to get into debt and be a miserable adult.
Keep in mind on top of the payments you will have insurance, and repairs.
Can you save up to 8k or 9k and buy a car for cash? That seems like a better deal. And with that much cash you should be able to shop around and get a good deal.
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