Key thing, when you quit, don't burn bridges. I took a year off, did some traveling after working at my job for 8 years. At the end of the year, I applied to a few jobs, but my old boss contacted me to rehire me. I went back as if I never left. I am in a different field, so you experience may vary, but if you are in a good team, your old boss is likely to rehire you instead of investing in someone they don't know and have to train.