Life is unfair to everyone in various ways, a little to some, a lot to others. You cannot spend your whole life whining and complaining about how cruel it was to you; the trauma inflicted upon you cannot be justified, but it is your duty to heal, grow, and feel safe in your mind.
After a certain age it is your responsibility to teach yourself what you were deprived of, to unlearn and let go of all the toxic habits, because flaunting anger issues, being emotionally unavailable, and not being able to communicate your feelings is nothing more than an excuse
If you're going to try, go all the way, it's the only fight there is. Otherwise, don't even start. It will cost you a lot, but that's the price for greatness