What’s one thing you did that you really wish you could go back and undo?

I quit high school when I turned 16 in 1966. I let people talk me out of it. If I could do it over again I would quit and head for California and find a rock band that could use a pretty good guitar picker. I'm a college grad and never made more than $10 an hour in my entire working life. A totally worthless human being but I could sure shake, rattle, and roll!

Got married? :p

I stepped onto a plank, which then gave way and I fell 15ft to the floor below, snapped a nerve and broke several bones. The result being I lost 3 years work.
The sickest part is, the guy who placed the plank stood by and watched.

Get married

kissed her one last time post break up, actually try harder and not break up

I would cherish and nurture friendships instead of taking them for granted

That's a loaded question, this is going to take some time to narrow it down.

Not really undo but more of a, "if I knew then what I know now", kinda thing. ;)

Nearly everything before I turned 22

Change the past and taken a different path.

I'd would have followed her to New Mexico

Highschool

Becoming a nurse.

getting on EP