CJackson95 said:
I need advice but nothing seems to be working
EDIT: I'm 15.
Be confident and assured about yourself.
We don't mind an initial nervous reaction and at times is can be welcomed, however you need to be sure get a grip on things and let a subtle assertiveness take over fast before you are marked as overly-timid.
Be charming and polite as well. I
cannot stress those two enough, especially the latter.
At least this is how things were for me. Just at least consider my advice having been the other side of the fence.
EDIT: Also, don't fear rejection. Focus not on the chances of failure as mush as the prospects of success.