Hey Imissyou
It's exactly like striking said. Don't let anyone dismiss your emotions. We are all human. We all have feelings. Nobody can tell us what we are feeling is not real.
My parents are that way too. Invalidating. As a result I learned that what I have to say doesn’t really matter since they get their way by preaching anyway. I don’t think I’ve ever told my parents what has really been going on in my life for 8 years. I just filter out all the bad stuff and tell them only the good news. I know it is really frustrating not being able to talk about with is on your mind. I think you would really benefit from finding some sort of outlet.
For some people, writing in journals helps. It can be cathartic to channel some of your thoughts out. If that doesn’t sound like something you’d be interested in trying, I’m willing to listen to your story and give you advice that’s been passed along to me from this community. Everyone here on PC is really friendly, so I hope that you can find someone you can relate to and confide in...or at least some new way to express yourself.
You are not alone

We will all support you <3