I can't tell you much about your situation. But from what I've seen and experienced, the difference between "worth it" and "not worth it" seem to hinge upon knowing what you want to do, realizing the degree is necessary, and getting it to do that thing.
I've seen people go to law school because they didn't know what they wanted to do with their life. I've seen people get masters degrees in sociology because "master degree = jobs, right?". Not worth.
On the other hand, I've seen folks say "I want this specific engineering job" or "this specific biotech job" or "this specific educational job", or even "this specific art job", get the necessary degree, and go on to be successful.
If you evaluate and have a direction you know you want to go in, then I'd say go for it. But if it's just because you've already started or because maybe it will pay off somehow, maybe evaluate further what you want your path to be.
Two other considerations:
1. A coworker of mine has a baby, works full time AND is getting his PhD. He always looks run down and tired. I don't mean to discourage because obviously it's possible, just be prepared for it to be awful for awhile.
2. From what I head from CC administrators, it can actually be really hard to get adjunct positions at community colleges, at least in the areas I know. There is a huge pool of candidates with their PhDs who wanted to be faculty at a big university, but are now realizing not enough of those positions exist for them, and they're fighting over adjunct classes.