Hi cleo,
to me intelligence is relative, yes there are people out there who are booksmart (who have left me floored by their knowledge, even the way they think), but there are also many more people who get their intelligence from life experience, both are important in my opinion and I enjoy listening and learning from both.
Sorry to hear about your probs at home, sometimes it's hard to watch loved ones heading for a crash and not say anything, sometimes you have to step back and let people make their own mistakes, my rule of thumb is, if they ask I'll give my honest opinion, they can take it or leave it. If they do crash and burn and I love them I just be there to help pick up the pieces without judging them. Having said that I don't take on more than I can handle.. Hoping your feeling better. stay strong. stay positive xxoo