You don't even trust your own parents?
Well, I don't trust most of my friends, sometimes they don't actually trust me! But yeah... theirs only some people I trust, and of course, the first would be my Parents; Yeah, they usually are the first to know what your problems are, even if you don't tell them, they would know... Somehow. Second would be my Brother and Sister. My bro and I get along fine, same goes with my sister, so I can go to them if I need something like help. Friends would be my last since most of my friends are usually assholes, so you'd expect some of them not to help you.
So sometimes, it's best to trust someone who's really close to you. That's what I've learnt.