ForeverBlue,
I truly understand the mental pain you are in. I am in my mid 20's and have been losing hair since late teens heading towards nw6, so trust me when i say that i empathize with you. Also heed HTsoon's advice as he to has a similar hair loss in his 20s.
I am going to keep my message short and go straight to the point as I dont wanna confuse you with to many words.
1) Dont even think about having a transplant until you are at least in mid 20s.
2) Shave your head and hit the gym. Browse sly bald guys for support.
It is very easy to get confused/tempted in one's teens. Dont browse this forum too much under the name of doing research. Transplants are a one way street. You can get a transplant at any time. But once you get one, there is no turning back. Its irreversible. Postpone the idea of getting a transplant.
I repeat. NO TRANSPLANT and SHAVE YOUR HEAD.