How to deal with things

I am having a lot of trouble dealing here lately the day to day stuff seems to be getting harder and harder to deal with and I don't even know if i want to get out of my bed most days. I do get up but I really don't know if I should, sometimes I wonder if this life is worth living. I know if I wasn't here everyone wouldn't suffer along with me like I know they do. They suffer by seeing me constantly on edge or crabby or just plain sad. That is not fair to everyone around me, I don't know if I can fix myself this time or if I even want to try anymore.