Ask yourself what your expectations were when you took the job. Are those expectations still obtainable? What do you know now that you didn't know 2 years ago? Have you looked at the Goject captians announcements that are on here? You must not really want to leave, and just think you should, PSA was hireing street captians this past year and may have been a good fit for yourself.
I say stay until you leave for something you know you want, you'll know, you'll be able to go home to your family tell them you have a plan, even if there is some sort term pain.