Yeah it's normal for people to get depressed. What I'm saying is depression isn't a normal state of being.
Op I don't know you and don't know what type of hand life has dealt you. what I do know is that life whether good or bad is worth living. we all fall down. with strength, support, and encouragement we do manage to get back up.
I strongly urge you or anyone who has these feelings to talk to someone such as a school councillor,psychiatrist/psychologist,parents,family,friends or a organisation that specialises in this area such as beyond blue (Australia). I'm going to lock this thread as i feel the potential for it to be trolled is high and not needed.