Maybe try to recall what you practiced with T and see how it helps. Imagine what he would say...in this or that case....despite the fact that you are now alone you had help and practice before on how to deal with it.

I know how it feels! I would lay in bed for hours...and miss important tasks and drop out of courses and college because of my focus on trauma.
At least - this means that you are in the process of healing. It is when no emotions at all you start to worry...
I wish you the smoothest healing ever.