I felt the need to blame my parents, until my life got better and I realized whatever they did had no impact once I decided to take full responsibility
As an extreme example just to make the point undeniable, your parents could have poisoned you, ending your life. Or they could have maimed you and left you unable to walk, or to see. And those are just gross examples.
Parents have a huge impact in an unknowable number of ways. Yours did on you, too.