I've been feeling extreme anxiety lately, as well as depression?

I may not know exactly how you feel but I'm 15 and clinically depressed with anxiety and put on meds and in a really tough situation myself..I'm stranded I don't know what to do anymore I don't have anyone except for my sister and boyfriend, if I didn't have them I would have already successfully killed myself long ago. I know life is hard and it looks horrible just try to look to the future and set goals but what iam sayin I can't even do that I don't even wanna get out of bed let alone do that crap. So if anything do something for yourself. I know I'm gonna sound retarded when I say this cause I wanna slap someone when they say it to me but you really just gotta push yourself and maybe one day your life will change for the better.