Just wait...
That it gets better.
That adults are really misguided.
That everyone who makes fun of me is delusional.
That being popular isn't the most important thing in life.
That college IS as fun as you think it's going to be.
Stop begging your parents for a car because it won't ever happen.
Find a way to make the things you care about happen.
Stop trying to grow up so fast.
That your husband really will be as handsome and caring as you imagine he will be.
That listening to Whitesnake and Bad Company with him on the turntable is as fun as you thought it would be.
Be True.
Above all else be true to yourself for the perceptions of others will never fulfill that eternal space within. Write all of your limits and doubts down, crumple it up into a ball, place it on a M80 and blow it up because you can. Know that you go on to achieve dream after dream and the less you try the more you succeed.