OP, I get it. I use to feel like you - but not anymore. I don’t know if it’s because DS is still young-ish and maybe I will feel different once he reaches teenage hood /adulthood.
Though, in all honesty, feeling like this was a total waste of time. I wished I spent DS’s early years on just enjoying him. We only have one life and I don’t want to waste it on being sad or comparing my lives to others and so forth.
My DS has Autism and language difficulties. Two years ago we thought he had an illness which would have compromised his life. Thankfully, it wasn’t anything like that. But that experience taught me... having previously thought that Autism was the worst thing that can every happen to my son. I realised him not being here any longer is the worst thing that could happen and I’ve cherished him ever since.
Neurotypical children/ adults lives may seem ok for now. However, I’ve met some that their lives have taken a drastic turn. A child falling sick/ had a life changing accident, turning to gangs, premature death, a death of a close loved one etc. The list is endless.
What I’m trying to get at, is, life is so unpredictable and we don’t know what’s going to happen 10 years on from now. It’s better to accept the life you have, enhance it as best as you can and keep going forward.