Am I overreacting about an issue with my mom?

This issue would need a lot more context then I really want to share, but would I be crazy for hating my mom if I told her a very personal intimate secret trusting that she would help me but instead she made it sound like it was nothing (when anyone else would agree that’s not the case) and not only that, also went and told the one person I did not want knowing about it. Or when I would confided in her about this problem/ personal issue/secret she would diminish my feelings and compare me to someone else saying stuff like “u think that’s bad think about x y z”. She just always managed to say the wrong thing and the wrong time so I started to distance myself from her and then she started thinking I was “mental” for not wanting to be around her or for changing how I acted with her.

Again, a lot more context for the situation would be needed but if anyone can relate or give me some advice I honestly would appreciate it. Like am I crazy/ overreacting and being a child?