It's been about three years for me now in total, with three different therapists, and I feel like I might finally be getting somewhere. I think I have made progress in that time, it's just subtle and hard to objectively measure... and it happens in layers, like an onion. I've lost a few layers but I'm not there yet. Whatever "there" is...

I think a lot of people, especially those with histories of trauma, have trouble trusting and take a long time to even come close to fully 'opening up'. But just because you can't say anything and everything doesn't mean you can't make useful progress.

Have you or might you be able to talk to your T about this problem? Sometimes if I can't say something I find it really helpful to talk 'around' it instead.