As you a minor you could have brought a law suit through a guardian ad litem. Additionally, the statute of limitations (normally 2 years for personal injury in CA) was tolled, or delayed, and did not begin until you became a legal adult. (18 years of age).
From the day you turned 18, you had 2 years during which you could have brought a law suit. Your opportunity to bring a law suit expired 25 years ago when you turned 20.