Anyone else struggle with growing up?

33F here! I was fortunate enough to grow up in a loving family environment (1 sister and both parents). Im not sure if itd be different if my childhood was traumatic but a lot of the time I feel myself wishing for my childhood again and re-enacting the same behaviours as when I was young.

My life is good now, married with a good paying job but I still find myself struggling with knowing that my family isnt what it was. When trying to connect with my sister like we did when we were kids it always falls flat. If anyone else has has experienced this id love to know how you handled it?