I trust most people unless they prove they can't be trusted. One of my cousins, who I'm very close to, is terrible gossip, not a vindictive one, but a gossip so I'm picky what I pass on.
I have 6 or 7 very good friends (the best) but out of them all there is only one I trust implicitly - I know when I tell her my deepest secret she wouldn't even tell her husband.
my brother, he is 10 years younger than me, so as kids we were not close but nowadays him in his 60s he is my rock. I also have one good friend, two days before my hubby died she promise him she would look out for me and she has kept her word, also one of my sister in laws she doesn't live in the UK but I can rely on her if I need help.