I've only had one 90-minute session, and that was when we did EMDR. I liked the length, but it was necessary to have that long of a session because of the EMDR process.

I take awhile to process my sessions, so regular 90-minute sessions wouldn't be the best fit for me. T and I have found that me coming twice a week is better for me. But if you're getting frustrated by not getting everything out in one 50-minute session, I can see how a 90-minute session will be very useful to you. I hope the change helps! It's great that your T is willing to change it up to help you.