Right annual-ish update. Been thinking of doing one for some time now. It pops into my head every now and then while I'm working out.
I'll be turning 26 soon. 26, dear lord, that figure looks awfully large. I still feel like I'm 20. I don't think like I'm 20 though. If I were to go back and give my 20-something self advice it would be this:
1. It doesn't matter what you want to do in the future, or what you will do. Go learn a proper, technical skill and do something to prove you've learned it. It can be anything. Writing, programming, drawing, carpentry, being proficient in multiple languages; anything that you like doing, that's quantifiable, and that will give you a sense of purpose while you're partying, fucking and wasting time and money getting a useless university degree. Most university degrees are useless to most people because if you like what you're studying, it'll probably be useless and if it's useful, you'll probably not like it.
2. Self-awareness and discipline are very important for success. Discipline to stick to the road you've decided to go down on, and self-awareness to know when to change course.
3. Live with interesting people that share your interest and are not lazy bums. You'll be inspired all the time, and they will motivate you to succeed.
4. Do some activity as a hobby regularly. Play the piano, go running, cook... it'll make you feel good and it'll teach you something.
5) Don't party when you have to work/study. Unless you're absolutely certain it's going to be epic. Like with people in your field of interest all having a big love in. That way you're also networking.
... And yeah, the only thing I regret from that period of my life is the wasted time spent doing shit I didn't want to do.