Stop comparing yourself to other people, it may be hard at first but everyone has their own insecurities.
Just try you best don’t try to be better than other people, just try to do the best you can do.
It’s okay, I feel the same way when I’m not able to help people but that’s okay because I’m still great even if I can’t help everyone, but who I can help is myself.
So just be you and do the best you can do not the best other people can do.
I hope that makes sense. :D