I work part time. It's in my field and it uses my degree. It helps me a lot, in terms of staying busy and how I feel about myself.
I had been offered a full time position at the same agency but I couldn't hack it because it triggered a manic state. My work was nice enough to let me go back part time, and I plan on doing so for as long as I can. I have my husband's income which helps, but yes, only working part time puts a financial strain on our household.