16 - failing school - do I have hair loss ? Please help

[blackmamba]

Please help. I'm 16 slowly falling apart I've hated myself for a long time and now I think my hairs falling out. I don't know where else to go my parents won't believe and life's moving too fast I just need to talk. I'm too scared. The last two pics I combed my hair straight down ( to show off the bald part) so I'm not sure if that's my part or crown. Anyways I don't have much hair loss (10-20 hairs in shower) and the hairs on my side and back grown really fast compared to top. The hair near my crown is thinner but a lot. I don't know which doctor to go to without being embarrassed please give me opinion.