Hi china please don't feel like shit. Easy to say, but close your eyes and open them another person. Take the cognitive approach. I had a similar experience a couple of years ago and felt that I was just making up numbers for parties that my friends had and didn't feel part of their scene. I decide to start afresh and 'got rid of all the dead wood'. It wasn't easy, but it wasn't as difficult as I thought it would be.
After this, learn to rely on yourself. If you can get help from others, it will be a bonus, but you know you won't let yourself down!
Be disappointed, but then move away from that and organise small goals for each day. What you can't do, try to learn or don't do it (if possible; is the DIY essential?)
It will be very lonely and I felt like that for a while, but for me, this is better than feeling like I am not part of the group and that the group values a turd in the street more than they do me. I certainly am not needy, but I expected my friends to be there for me the one time I needed them and they weren't. The worst was that they did not even realise that I needed them which made it pretty obvious that I was not in their thoughts. As soppy as it may sound, this is something that the majority, if not all of us was; for people to think about us and value us. When this doesn't happen we have to look at other ways of living our lives and relying on ourselves is a safe bet.
Be strong and it may feel ilke shit to begin with, but after you hopefully will be pleased that you sorted yourself out and will not be put in that position again.
I don't know if any of this will help, but good luck and I hope you feel better soon.