What's one life lesson you've learned the hard way?

Never own a diary or write ur personal feelings in it

don’t sweat the small things

If you have to have no friends to have good friends so be it

You've gotta have your own back cause no one will. 

the people who messed with you don't care about how they've affected you or how miserable you are, so you just gotta step up and make your own happiness! don't hold onto grudges either, they just wear you down and prevent you from moving on