18 and need some advice on life?

I would just like to know if you had one thing that you could tell me to do/ not to do while i enter my prime what would it be?18 and need some advice on life?
Well, I think he poster above me pretty much said it all... All I have to add is to live your life to the fullest, make each day count, and don't have any regrets. Life is to short to worry about all the small stuff. Do everything that you want to do now, enjoy your youth because it goes by very fast. Don't rush into things and have fun. Oh and one last thing, continue your education, I think that's the most important thing!!!18 and need some advice on life?
i would tell you to use condoms and birth control. you're 18.. you don't need a kid and you don't need an STD. don't smoke, drink only on occasion (and watch your alcohol intake.), never drink and drive, always be willing to lend a helping hand, don't go in back alleys late at night, don't cross the street in heavy traffic, make sure your boyfriend treats you the way you deserve to be treated and the second he stops dump him, never stop watching cartoons, dance like no one is in the room, sing at the top of your lungs, and remember to always call your parents at least once a week and let them know just how much you love them.
There are two things that I can tell you. Don't have kids young and before you finish your schooling and make sure you go to college and get your degree. It is really hard to get a job with just a high school diploma.
32 and many many regrets. Plan for your future and put it into action
Make education your priority..now and always...one can never be 100% educated.