I Don't Open Up to People Very Easily

I'll never really understand some people. They say things like I wish my grandfather was still here (or any other relative.) they would know what to say or what to do. I do miss them so much. It's not about that. It's just that when I did have problems I never let on. I'm so good at keeping it together they would have never believed the things I live through. So I would have never said "Hey, I have a problem" to any of them. While a little understanding would be great, it's just easier to keep things to myself.