Can an adult survivor of child abuse sue the abusive parents?

Going to the trouble of suing for past parental actions is not going to be a positive move toward your own mental health. Even if you had a positive outcome, it would not be enough repayment for pain and suffering in that an apology or regrets would not be included. Look instead for good things in your current life; hopefully you have found a "mother of the heart" and have others who provide love and kindness.