Grinchy Sounds like a no brainer to go back to Florida!
I don't drive either, I drive in Norway, but only because I'm from a tiny place, with a small city. I tried to drive in the UK, but being on the other side of the road, and with higher speed limits, I simply cannot cope. So I walk or get a lift normally. We hope to move to a bigger city in the next year if I can find a job, then it will be easier for me to go outside without needing a lift everywhere. To be fair I'm too anxious for the bus at the moment anyway!
Oncemore it doesn't sound like you have bipolar (I do), as you would get highs where depression is not present, you would lose social boundaries and forget that anything has consequences. Whilst it's a fantastic place to be, the actual behaviour can be very destructive, both socially and financially (spend FAR too much money). It's a very complex illness, but from what you've said, it doesn't sound quite like it would fit you. Many people with similar symptoms get diagnosed with borderline personality disorder, though I don't really know enough about that to be honest. It's worth seeing your GP. I had to try 5-6 different ADs before deciding SSRIs are not for me. I am not on some other ones, Mirtazapine, and since I started ADs at age 14, these are the first ones to work. I'm 28 now, so it took a long time. What I mean to say is that it's definitely worth trying, and if they don't work, try some other ones until you get the right stuff. It helps massively.