I think you've received some great advice here but allow me to articulate a particular way of looking at this. You're in a situation where you are RUNNING FROM a job. In those circumstances, there is a higher probability that you will accept something you don't like just to escape your current circumstance (been there, done that, much pain but excellent life experience). When you interview, you need to be excited about the opportunity to the point that you would RUN TO it regardless of how unhappy you are now.

You need to make a move, but your objective needs to be something desirable, not just different. Take the time to identify your favorite skills and environments, prepare and take your enthusiasm with you.

Good luck.