Thanks Akane for the estimate!
I'm planning on saving $2,000 (As said above) before getting the horse.
Most places around here are about $250 a month for board, but that includes feed/hay/water/etc.
There is a barn behind our house, so we are gonna walk over, and ask if they can board (They have some horses in a pasture).
My other pets (Luckily) cost me about $30 every 4 or 5 months. That's the rabbits, and ducks. They cost so cheap, because we buy their stuff in bulk. I'm hoping I can cover most of it, but I talked to my parents, and my dad said whatever I can't cover, they will.
As for other posts asking my riding ability, I am taking lessons from my friend, and my mom is helping train me. I can also get a cheaper horse (Than most), because mine is only for pleasure/trail. I'm pretty sure I found a good horse (Found it online, but watched some videos, and once I get money, I'll go see it), it rides fine, never had injuries, and isn't special needs. I will, however have experienced horse owners come with me, to make sure it's fine, as well as a vet.
Thanks everyone for your comments (Positive, or not. Like stated before, I'm also fine with the negative ones)!
I've estimated (When I sell my rabbit diapers) I will be getting about $350 a month, and that's $4,200 a year. Does that sound like enough?