A good bit of the time. Try doing something for someone, they really appreciate it. It might help. Other then that, IDK. Hopefully the feeling will just kinda go back under the slimy rock from in which it came. It sucks big hairy balls.
If you are feeling this way.. The first step to no longer feeling it.. Is to figure out the root cause as to why you feel useless. Once you know the root cause(s), then you can work on those things , once those are worked out, you will begin seeing yourself in an entirely different light . :-)
you can do the smallest thing for someone in need, it's amazing how gratifying that is. Theres so many elderly people out there that need help or just would like someone to talk to.Theres a purpose in life for you , you just have to find it! CHIN UP!!!!