Though I am trying a new strategy of interacting more and trying not to worry so much. Also, I'm starting to lean on friends and colleagues to help me raise my game and keep my accountable.
Tips on being a postdoc 1. Don't get clinically depressed 2. Don't isolate yourself (number one will make you do that, btw) 3. Ask lots of questions and don't be a perfectionist (number one will make you afraid of being anything but perfect and feeling like you aren't worthwhile). 4. Do things besides science. Find something outside the lab you love to do. It will keep you sane and balanced.
Otherwise, you might just feel stuck.