What can I be diagnosed as?

For all my life, I've just had to overcome obstacles. I went through years of physical therapy due to birth defects that also left me half blind. Until 7th Grade, I was an Honor Roll student. However, from 8th until now; 10th, I've been skimming across the "p" line, just barely making it through. My family has a history of depression and slight mental illness as well, with my mother being clinically depressed and my father showing signs of depression also. I believe I may suffer from a large inferiority complex, as I used to be very anxious about my grades and as such constantly stressed over not doing well enough in school. Conversely, now I realize that my skimming has been because I haven't been doing the work. While many have told me I get distracted by things like Facebook and video games, I think that the distractions are just ways to take up time. I cannot think well of myself, and I openly reject any compliments given to me. Furthermore, I don't have any confidence, goals or motivation, and I can't even imagine what I'm going to do with my life, and it isn't helped by the fact that I can't think of anything that can thrill me or could truly make me happy. I've thought about exploring therapy options, but I don't think that will be possible if my family doesn't get insurance soon. I may edit this with more theories or evidence. I know that Yahoo Answers isn't the APA, but I'd appreciate any help.