Anonymous wrote:"Mom, I'm not giving you Johnny's soccer schedule this year. We'll invite you if I can give you the company you seek."
"Mom, I'm doing fine, I'm not going to talk about my condition."
"Mom, you raised me well, and I can make good decisions without your input."
**they bluster**
"Mom, I love you, and I'm going to go now."
"Mom, this isn't help, this is intrusion. I'm an adult, you don't have to parent me any more."
You're going to have push back harder--and let them be upset for a little while. They'll have to learn what the cost of admission is to be in your life--and that involves stepping back.
And if they try to trample over the boundary, end the interaction. "I'm sorry to hear you're so upset about this mom, I have to go now, bye bye". And yes, leave a gathering etc. Remain calm. Do not get pulled into a tit for tat discussion or even attempt to rationalize your choices. They will gaslight you if you do that. Remove yourself. If they can't respect your reasonable boundaries they do not get to be part of your life. You don't need to EXPLAIN that to them or get them to agree. Just do it.