Skin cancer simptoms? (please answer)?

So i was too much on the sun, i use sun cream but i wanna get darker skin so much, so i do this like every day for two weeks, for a couple of hours. I'm really depressed I had a fight with my boyfriend, my family doesn't understand me (i'm 14 btw., from Croatia, but I'm in Sweden for the last months), my skin was burnt yesterday i can't move i haven't told anyone about this i cry all the time, not because i walk like a penguin when no one else is looking, because i have no idea what am i going to do with my life, it's so complicated, they teach us in school about skin cancer, you get depressed when you have it?