Its such a horrible, hopeless feeling. I have been feeling it a lot lately. The only thing that helps me is my creative passions, occupying my mind and hands with them. Somehow it gives me a little clarity. I guess it gives me something positive to obsess about. Sometimes I simply feel so stuck because I can't stop thinking about how stuck I am. I try to figure it out in my head like a puzzle that never ends, but maybe your mind needs a little vacation? I go for long walks and listen to music that inspires me, contact old friends, or try to be around someone or something that makes me smile. Sometimes I give myself small goals. I write them down, and try to spend my free time with getting those simple things done. I hope you feel better soon!