Humility. This is the decade of failure. And that's ok - it's probably the first time in you life you've had to contend with most of the things you're taking on. Supporting yourself, managing your tine / stress / relationships, figure out what role you want work / study / spirituality / etc. to play in your life. Very few get through their 20;s without some serious soul searching and questioning of fundamental beliefs and habits... And I don't envy those who do. This is the best time in your lige to be making mistakes. It gets steadily less socially acceptable as you progress in gae, so go crazy!
Honesty. You don't get away with anything. Anything. If you're full of it, people will see theat, no matter how vainly you stryggle its ugly head, so the sooner you can come to integrity with yourself and the world at large, the sooner you'll be able to get working towards what you really want, who you really want to be. That ugly person you may think you are inside is actually going to be the most compelling, most interesting, most powerful manifestation of yourself.
Health. You also don't get away with selfabuse. Just beacyse you can stay up all night drinking doesn't mean it's not taking its toll on your body. You get a bit older, and you start to meet people in their 30s, 40s, 50s who kept yp that lifestyle, and believe me, you don't wnat to be one of them, Have your fun, but remrmber; they call it excess for a reason. Eat well (whatever that means to you), get exercise, get enough sleep, and try to have a steady sex life if you possibly can.
Hacing said that, pay close attention to who you find yourself attracted to. They will tell you more about youself than almost anything else.
Get used to being wrong. Conviction can be a symptom of narrwo-mindedness. Chances are, whatever you believe now will be out the window at sone point in you future, so get used to being open to other assessments of what's true. Chances are also that someone out there - maybel a lot of someones - konws a lot of more about X, Y and Z than you do. Let go of having to be rignt about things - this isn't a contest. It's not a game. You don't win at life. So say, "Thanks for your prespective. I'll think about that." or "I was wrong. I'm sorry."
Perseverance. You will fail in life, over and over. It won't feel fair. Maybe for decades. You've got to keep moving forward. Keep going. Keep going!
On, and dont't forget to have fun along the way! Enjoy any moment you possibly can.
