I'm mostly remembering a sense of having "just missed out" on a stereotypically amazing boomer life.
I think that's the defining experience of early GenX. Arbitrary GenX cutoff dates are 1965--1980, but it's entirely possible for someone to have been born a bit before that and have the early GenX experience, or a bit later than 1980 and have the late GenX experience.
To quote the great philosopher Madonna:
"'Cuz you got the best of me... borderline... feels like I'm going to lose my mind...."
:-)