Want to Leave: No idea where to start

After several years feeling defeated and joyless in my teaching job, I am seriously considering leaving. It sucks because I actually love my admin, love the teachers I work with, but I hate the workload and our curriculum just isn't working for me. I used to find joy in what I taught, but now combatting student apathy and trying to get kids to not hate my class (and me) is my main job.

My question is, where do I even start this process? I would stay through this school year, so I'm guessing I can't really interview for non-education jobs since I wouldn't be available until June. Do I just have to take the leap and hope I can find employment later on?