I need to find a new job

I just quit my job, so I need to find a new job.
The question problem is that I don't know what l'd like to do and what I can do.
I'm so sad. I have been worked about four years, but I even have no idea what I can do for another job for my rest of job.

I prefer problem to question in this situation. When I hear question I think you are still involved in the thought process. When I hear problem I feel that you have entered reality.