Fortunately, I have a lot of benefits riding on this that I didn't have before. I've been out in the workplace, seen how difficult it is to get a job these days, worked my butt off to eke a living out of meager wages. I'm not looking at the world the same way as I did three years ago.
I found an online class that's applicable to what I want to major in, with a teacher that I've known and had good experiences with and knows me. I found the textbook available on Kindle
I also found someone who I am in love with and is in love with me back and is willing to get on my case if I start to slack.
I have no excuse this time for, not just passing, but acing (pun definitely intended) this class. I am going to do it.