that does sound scary - I would be terrified. but the good news is that it sounds like these people are there to help you? So at least the GOAL is a positive one

As for how much to say, I don't really know much about what a team like this is. so I'm not sure. Are they professionals? If so they've probably heard a lot of what you're going through before and might have a new perspective and ways to help you.

As for your mother, maybe keep her there if you can, but it it'll stop you from sharing and being able to talk no? If possible to have her there, she could be really helpful in all this. it really depends on what YOU feel like, and what you think is best. Maybe, if you look deep down you'll know the answer And if you change your mind you can always reach out again right?

good luck!