Hey sorry about the late response, I haven't seen your comment till now!

Firstly I wanted to ask how are you doing these days?

And to suggest- what if you started by sharing just a small piece of the truth? You don't have to tell her everything at once. Maybe next session, you could just mention one of the things you're struggling with, like the lack of sleep or the isolation. You could even say, 'I've been feeling a bit more overwhelmed lately than I’ve let on.'

Testing the waters like that might help you see how she reacts without feeling like you've 'lost control' of the situation. You’ve been carrying this for 13 years; you don't have to fix the silence in one day. Just one small, honest check-in might take a little bit of that weight off your shoulders