It took me years of 'playing' before I actually started systematically practicing and I would be better if I'd caught on earlier. But then I think I might have missed out on something if all I did was "practice" too. I don't think it could have come earlier because I didnt have the drive or discipline that I do now.
I could also wish that I'd gone to a teacher for technique, but hitting a wall with my crap hands meant I learned to work with less as well as develop my feet, so that was more of a detour than a setback. I can't regret anything. I tend to change once I stagnate, and I could argue that the things I've overdone and become tired of are more deeply ingrained, they will remain and make part of my personality. Everything runs its course, its all good. I put as much into drumming as I'm comfortable with and I've learned what I wanted to, when I wanted to.
Right now I practice quite alot (I was made redundant from work recently), and I think there will be times in future when I won't have the time, or the drive, and I like to think that's not a reason for me to feel disheartened or quit, because what I gain now, I will keep to some degree.