Many folks never or rarely tell anyone else what is going on.

You are in a difficult situation. Although initally you might feel anxious about telling anyone, I think eventually it will get easier, and the main thing is that you will get the help you need.

You burning out because you won't accept help ..... won't help you or your mother at all.

Asking for help, accepting help, finding folks to talk with...will help you and your mum.

You aren't a bother at all. You have a right to ask for help and ideas.