What should I do? I'm losing my sanity.?

I have a 3.477 GPA at the moment in high school, never had a girl friend, my parents are heading toward a financial crisis. Basically I feel useless, hopeless, not able to help my parents. I have plenty of friends, but I'm starting to question if most of them even see the true me. Being a sophomore, two more years of this seems unbearable. I plan on following a military career, which would be sweet relief. But, at the moment, I read stories, and I start to weave reality with fantasy. I can barely grasp what is currently going on. My mind is muddled, my thoughts are falling apart. It's hard to focus just typing this rant. What should I do?