Do you regret getting an Autism disagnoses?

Autism mommies I need your honest opinion. Do you regret getting an Autism diagnosis if your child is high functioning? My mom told me she regrets getting my brother diagnosed and wished they would’ve skipped it. My other brother is undiagnosed and everything went so much smoother for him. I’m pretty sure my oldest is autistic (will be 5 next month) and possible adhd. He’s been in OT and play therapy for almost two years and has made a lot of progress. He’s just really smart and it’s making him struggle in school. I don’t know what to do.