Sure, I was being extreme. The danger is getting stuck, like in “Glory Days” by Springsteen, or Brando in “On the Waterfront.” People especially get stuck on their high school years.
IMO it’s a problem if doing that stops you from making new happy memories. Life is for living.
It sounds like you're not there yet, but when you are, I hope you will be less judgmental of us old folks who simply care to reminisce.