It's true that our parents parenting was the main cause among our current issues, but that doesn't mean you need to blame them forever about it. Your parents either did the best with what they had, or they had no idea how to do it properly. There's a good chance they had no idea what they were doing when they raised you. I'm sure you've dealt with hurt, emotional breakdown and a variety of other letdowns in your life, but that doesn't mean you need to let it affect your current reality.
We've all been hurt in the past by other people. Whether it was your parents, siblings, best friend, or whoever, the memory can still exist, but it's time to let go of your emotional connection towards the situation. It's only weighing you down.
Too many people hold on to their past negativity. They've tried to forge their way to a better lifestyle but they're constantly dragged down by their emotional attachment they host towards their negativity. Until they let go of it they'll continue to live a life of mediocrity.
Stop blaming others for the hurt you went through. It's not helping you in any way. Choose to forgive, forget, or whatever you need to do to move on from the situation. The quicker you can move on the quicker you can find ideal happiness.