I think sometimes therapy isn't the best choice. If someone tries to establish deep friendships, the best way is to be a good friend, not to think what a friend could do for you. Sometimes people can really benefit from focusing on a (mutual) interest, or helping other people. Getting stuck at "My life should be better", is quite self centered. There are times when we need to be, and times when we don't. Constantly thinking about our own shortcomings is absolutely harmful. Sometimes it is better to try do just do things, anything, to get out of your own head.

https://www.bustle.com/articles/1028...t-an-introvert