Starting Over

Well into my jr year in high school I've been noticing a different person in me. A person I didn't particularly like. My GPA started as a 3.99 and now with multiple classes I have C's in that doesn't look so promising. There is also a lot of stress with pressure on whether or not I will make varsity basketball this coming year (being 5'7 is a struggle sometimes)and trying to get my ACT score up to apply to colleges (score is not good) this coming spring. And to top it all off, at times I feel there is no hope in ever finding a girl that is right for me. There are days where all this stuff just comes piling down on my mind and I become a depressed, quite person that nobody wants to be around. I've tried talking to friends and family about my struggles but I feel I just get a repetitive answer from all of them. Maybe working on my PMO addiction is the right place to start over if not anywhere else.