Depression

I used to be the happiest person ever. I used to do everything a normal kid would. I’m 17 now and my parents are always on my ass and my boyfriend is no help. I don’t wanna be told to leave him. Because I severely love him. I just want to know if y’all know anything to do to treat depression? Are there any LEGAL over the counter drugs I could take to help boost my happy hormones?? I need some advise because I can’t live like this. Thank you all in advance!