Is it bad to want to stay home?

Hi, I'm 16 years old and I have been severley picking my skin for a year now. It started halfway through grade 10, I mean I've always picked a little here and there but now it's just bad. I have not worn my hair out of my face for a year because I continually pick my forehead and generally no where else on my face. I have been picking my back and chest all year too. BUT I managed to ease up picking on my back and chest, I did pick it recently but it's not that bad and it will heal quickly. But my forhead is absolutely disgusting. I also have some kind of nto visible scars on my chin (visible to me anyways) and I picked my chin so now my forehead and my chin are gross. My chin is healing but my forehead really really hurts, and I feel very embarrassed to stay at home. I've managed to not severely pick my back and chest but I constantly attack my face!! And I almost was going to ask someone to work my three shifts so that I could sit at home and let it get better and then not touch it again, but it never works. I always say "I'll give it these days to heal" then it gets better and I pick it again. It's so annoying. I can't stop. I cry and say I hate myself. It's so stupid. I dont' have bad skin at all, that's the thing. It's weird how I make my own blemishes. Then I feel embarassed about them and I want to stay at home and I miss out on things. I'm getting irritated with myself to the point that I see no reason of leaving my house or seeing my friends. I can't stop!