I think there is a pattern to this. Us non-criers end up in counselling 30 years later and can barely manage lip wobble.
I don't know about your histories but emotion wasn't accepted in my upbringing. Chin up, get on with it.
Bleach the toilet at 4am if feeling bad. Control yourself. Be strong. Stop feeling, you need to keep doing. Feelings get in the way.
I got counselling, I found a woman that I'd like to have been my mum. Not much older than me really, but someone who didn't pass the tissues and drag the bad stuff out. Although it did come out eventually. I'm still fragile with a hard outer shell, but I am aware that 'I can have feelings'. I spent a long time denying that.
Sorry to talk about myself, but hopefully it can help you see that you can be hard but brittle too. Like cast iron I guess.
I'm going to put on my Sleep With Me podcast and get an hours rest before the day starts.
I think there are a lot of us who are the same, I hope your counselling can help. Keep talking here, it's nice to know we're not alone.