I regret giving up on the guitar the first three times
The fourth time it actually stuck...but I had started playing three years even earlier...
Actually, no. Fuck that, I don't regret it. I would be waist-deep in playing a ton of classic rock and blues and wouldn't have branched out into what I play today.
Okay, I have no regrets. Every bad decision has shaped into making me a better person, has shaped me into who I am today.