I wish the guy working in the music shop didn’t treat my first guitar like a piece of crap saying it wasn’t worth repairing. For that reason, I felt it wasn’t worth playing either, so I let that guitar sit in the corner for 15 years and I hated it for being a cheap guitar. I think about where I’d be now skill-wise if I’d not been discouraged by that person. After some research I recently learned it’s actually a great guitar, known for punching above it’s price.
I can say I’m glad I have theory knowledge from a lifetime of piano playing, or I suspect theory would be what I’d be missing right now.
I do wish I could see music differently, meaning that I wish I wasn’t afraid of becoming desensitized to my favorite music so that I could have more motivation to learn songs.
ETA: Oh I thought of something. I wish I’d learned from day one to play in classical position. Not that I find it hard for the fretting hand, but it’s actually hard for my mind and right hand to adjust to strumming and picking strings at that angle. I wonder why Justin doesn’t position it as such in all of his beginner lessons.
Absolutely no point wishing what you could/might have done. It’s too late now.
However now is the time to start doing what you can do now.
Totally cliqué of course. Today is the first day of the rest of your life.