Okay, thanks everyone! It's good to have some feedback that I'm probably headed in the right direction. I'll make sure to keep a close eye on my mood charts to help me decide whether I'm taking on too much, and be ready to take a step back if needed.

Good point to watch out for mania. I'm hoping that I'll be able to get away with Lamictal as a monotherapy, but I'm aware that it doesn't do much for mania. If necessary, I'm ready to go back to lithium, and like you said my Pdoc will also be keeping an eye on this. For now, the slow build-up of Lamictal is a little frustrating, but there's no way around that, unfortunately.