Maybe you can ask your T if he thinks it would be beneficial if you came in every week?

About the extra sessions: My T will call me on days she's working if I request it, and she once tried to fit me in that same day but couldn't.
I did twice a week for a few weeks a few years ago with another T. She was leaving very abruptly - a five week notice I think - and I saw her twice a week those five weeks so we had time to finish up what we were working on.

We once talked about doing trauma treatment twice a week, but that wasn't practical as she was only in that office on wednesday and thursday, but while still going to school etc. two days in a row was too much.

So now I come in once a week, and every couple of week I'll go inpatient for a week and I'll have three or four hours of trauma therapy every day. It's hell, but it works.

During regular sessions we don't do trauma work.