Anger and resentment towards my parents

When I was a baby, I didn’t smile until I was 8 months old. Pediatrician told my parents I was most likely autistic. They did not accept that. When I was a child, I could not properly interact with other children. I would get into fights. When I was a teenager, I developed agoraphobia, and could not leave my house without intense panic attacks. Pediatrician forced my parents to seek a child psychologist who diagnosed me with autism, anxiety disorder, and clinical depression. They asked my parents why I was not receiving interventions and why I did not have an IEP when I was clearly autistic. They said they did not believe that I did and that I would be fine without everyone treating me differently. Doctor put me on a variety of drugs, some of which I cannot remember. I do remember being on an SSRI until I was in my early twenties.

I have a normal life now. I am in my thirties. I went to college, I secured a successful career, I got married, and now I have two of my own children.

But I still have this resentment and anger towards my parents for never getting me help as a child. I struggled so much. I was so miserable I attempted suicide many times before I was even 15 years old. I didn’t know what was wrong with me. They never even told me I had an autism diagnosis as a toddler and I could have such a different life if they had just gotten me help earlier.

How can I forgive them? How can I let this go?