You didn't ask to be born into your family. None of us get to pick our parents and siblings. We get who we get. And, we get their baggage too. It's always been that way.
There are no perfect families. There are good families and not-so-good families. Sometimes you just can't count on your family for support. Then, you have to be your own cheerleader. If you are lucky, you'll have a few friends cheer you on in life.
I kept some members of the family I was raised in at arms length. It was necessary to keep my sanity. My AH cut all ties with his alcoholic mother over 40 years ago. We have three grown sons. All three have had issues at one time or another with their dad. I sometimes wonder why they haven't cut him completely out of their life.
But as my youngest said once, "I love him. I just can't stand him."