Neutontin/gabapentin is definitely worth a shot. It's off-label, but it really helps me, and a lot of other people Type I and Type II.
I like that your current pdoc thinks outside of the box, and knows how to use a lot of meds off-label, but it's worth at least seeing the new pdoc since you don't seem happy with your current one. I would not rely on a GP to prescribe your psych meds. They're not going to want to do it, and you're not going to get the care you need from a medical doctor.

I'm so glad that you got the letter from your neurologist to excuse you from jury duty if you are called. I know that is something you were very worried about. I don't know why they won't excuse you permanently in NY like they did for me in MA. My PCP wrote the letter, and said that they wouldn't want me in the jury box because of all the meds I take.

I completely understand trying to remove all sources of anxiety
Is it possible for you to sit down and talk to someone about your annuity in person?