Have achieved nothing in my life and feel worthless and lonely

I find it hard to write this as I hate having to put it into words my brain is hurting right now. I don't have anything to show in my life. no job no hobbies or skills,just like exercise or dancing because it feels good. I'm stuck in a horrible place in my life,doing nothing. I go to the jobcentre to sign on and that gives my anxiety every time because I know they can stop my money if they feel I not doing enough to get in to work. I'm definitely not doing enough,I just feel unwell every day. I'm irritated and quite bitter and jealous at seeing others do anything good. This makes me feel worse. Every day I can't wait to go to bed so that a day is done. I have no friends or happiness to look forward to. Im just isolated and sad.