Welcome, @Sally59
It sounds like you might have had a rough time growing up? 😞
Unfortunately we can't recommend specific groups in real life, due to the anonymity rule of the forums. It's there to keep us safe and to let us express ourselves about our MIs (mental illnesses).
However, have you had a look on SANE's Friends Family and Carers Forum ? If you type "Bipolar" into that forum, you'll be able to find threads on Bipolar written by the family of sufferers, and you may find support that way. You can also write a post of your own there.
I'm also going to tag @Shaz51 who might be able to help.
An important forum tip is if you type @ and then click on a name in the drop-down box, that person will get a notification and won't miss your reply.