> I'm 30 right now, and only just recently finished my bachelors and have been looking to get a PhD, but it's really hard to find a program that will let you work full time while doing it.

I did a similar thing during my bachelor: working close to full time. I was essentially busy 14 hours a day, seven days a week. I was burned out within a year and switched to 20 hour weeks. Looking back I suspect that I suffered from somewhat severe lasting consequences for at least another two years and I don't think I've been quite the same person since.

Be mindful of what you're doing. Your brain and body need downtime at some point.