People can't do something by themselves; they wanna tell you you can not do it.
I think it's very important to have a feedback loop, where you're constantly thinking about what you've done and how you could be doing it better.I think that's the single best piece of advice: constantly think about how you could be doing things better and questioning yourself.
Gather ye rosebuds while ye may. Old Time is still a-flying. And this same flower that smiles today, tomorrow will be dying.