I know how you feel about wanting your own horse. I wanted my own horse after starting riding lessons when I was 8 (but my parents obviously said no to a 6 year old owning a horse...). When I started taking lessons at a different barn when I was 12 I got to half lease this great gelding, Romeo, and he taught me so much about horses. However, as soon as I did get my own horse, Rocky, when I was 15, I realized that as much as I learned from Romeo it didn't even start to teach me about the responsibilities of a horse. You really cannot know what you're getting into until you do it but since you have only been riding for a few weeks, I would suggest waiting. I'm a senior in high school this year and I've already been thinking about what to do with Rocky while I'm in college. Rocky is my life. My career choice, my school choice, everything revolves around how I can afford to keep him and how I will make time to ride him. I'm going to be an accountant because I know after 4 years of school I will be able to have a steady career and income that allows time to spend with horses. If you're not willing to make that kind of sacrifice for you horse, don't buy one. I know wayyyyy too many horses that have owners who had fun for awhile but got bored, scared, busy, etc and their horses just sit there. It literally breaks my heart to see all these good horses going to waste because the owner didn't do their homework ahead of time. Because there are so many horses like that, find one to lease. I'm sure your trainer knows someone who can set you up with a horse. You could pay for more lessons, as some people on here have mentioned, but it's fun to spend time with a horse without being in a lesson. I think that from what you have said it would be smart to lease a horse (even a care lease where you pay for everything and get to keep the horse on your own property 24/7) until you are 100% sure what your plans are and that you have the time and money to care for a horse. If I did not already own my horse, I wouldn't buy one now. There are too many variables after I graduate from high school. Just because you have a plan doesn't mean that's what will happen and caring for a horse is not negotiable. Ever. You HAVE to take care of your horse and buying a horse without knowing you can and will do that is selfish and immature.