My personal experience was growing up being called a tomboy, and feeling very dysphoric, and when I discovered that there was a word for what I felt at age 13/14 it changed my whole world. Unfortunately, my dad was my hero growing up, and he just didn't understand, and I tried to suppress who I was for years to try and make him happy.
Reality is, I was just making myself miserable, and if he can't accept me for who I am, then I just have to be thankful I have some good childhood memories and let go.
I think it's probably normal to hesitate to tell the people we're afraid we might disappoint or upset because we don't want to lose them, but living life in a stalemate and worrying about what-ifs for years... Well, I can say it's not fun.