Welcome, Word_Nerd93! smile

How were you identified as gifted in high school?
That may help you qualify for American Mensa.
More info here:
1) Join using past test scores - https://www.us.mensa.org/join/testscores/
2) Mensa testing - https://www.us.mensa.org/join/testing/

This forum also has a section which may be of interest:
Age or Ability Specific > Adult - https://giftedissues.davidsongifted.org/bb/ubbthreads.php/forums/29/1/adult.html