Diets do not work. Food is not bad. Don't say you can't have something. Think about your food every time you eat. Ask yourself if you're making a healthy choice or not. And don't feel guilty when you don't. The purpose of food is fuel for your body. Don't let it turn into anything more than that.
People are flawed. They will say mean things about you that aren't true. Don't let them define what you think about yourself. Choose to believe the truth: you are beautiful and kind and made in God's image.
Sometimes life will be hard. Mistakes happen. Problems exist. You can wallow in the negative or choose to be thankful for the good and do what you can to make things better.
No matter how hard you try not to, you will make a bad choice. That's ok. Do what you can to fix it, but don't dwell on it after all is said and done. Decide to make a better choice next time.
Be quick to listen, but slow to speak and act. Before making any decision, seek God's will.
You can't control anything in this world. Life is unfair. The only thing you can control is how you react to things. You get to choose how you let things affect you. If good things happen, soak it in. Let the bad bounce off.
I know all of this is easier said than done. I need to take my own advice. I'm working on it. I pray you'll grasp it sooner than I did.