Glad to hear things are going well. Good luck with the new job.
I understand about thoughts of your A and BS conflicting with work. I feel like I cannot start my day at the office until I hit SI and unwind my brain.
My advice is just to be mindful of what is going on in your head. If you have something that needs to be said, try to text. If you cannot, write it down to discuss later. Discuss what happens during your day. If your BS had a trigger, you want her to to be able to talk about it.
Most of all, be mindful of your separation. At one point early in R, my BW and I talked a lot. And then we got busy with work and kids. This created a natural distance between us. In the past, it would have send me down a bad road. Now, I am in the moment. I know why there is a distance, what it really means, and how it makes me feel. Facing those feelings of isolation is the best way to understand how to get through them.