Insanely anxious tonight, actually have this heavy feeling pressing on my chest..

I was trying to figure out what job I'd like to do/which school to go to, but just felt really empty about the whole thing, so I put my focus back on my therapy work. I started to feel utterly useless, good-for-nothing and extremely selfish..

Can someone please tell me this is just the anxiety/my mental disorder lying to me, that I actually am good for something and in time, will figure out what that is..? Now, I just don't have energy for anything other than healing myself..