Never be that person who isn't tolerant of other people's opinions about them. We are all imperfect. We all have flaws. Your friends may see nothing but the good in you, but what about the ones who don't know the real you? You can't be all sensitive and weak just because you heard a person speak some negative things about you. You have to be strong. Stop caring so much about what they say. You are you and they can't change that.
And please, don't change because you're afraid of being judged. Our generation is filled with judgmental people and hypocrites, so being judged is inevitable. Don't care too much about what those people say about you, especially the ones you know won't be in your life for long. Just accept what people think of you. Shrug it off and be okay with it. Do not let any negative words affect you. Do not change just because people can't accept the real you.
Stay true to yourself and know that there are people who love you because you are you.
Never be that person who thinks that she is weak. You are not. You are strong. You've been strong. You've been through a lot, but did you give up? No, you didn't. Girls have this feeling that makes them want to give up, but they can't because it's their responsibility to solve their problems knowing that the bad days will eventually pass.
Every storm is followed by a rainbow. In every problem that you face, you will always learn something from it to make you stronger. Through every heartbreak, every exam that you've failed, every problem that you've encountered, know that you're here right now because you faced them all and conquered them all. Just keep on believing in yourself. Have faith in God knowing that He is always by your side.
Never be that person who's always putting everyone first before herself. Have some time for yourself. Don't help people when they're not really in need. Don't waste your time because of their selfish purposes. If you're a helpful person, people tend to take advantage of that and just use you. Don't be gullible and be aware of people's intentions.
Never be that person who's too young to be worrying about life. You are young, act like it and enjoy life. Don't waste your time stressing about things you shouldn't even be stressing about. We all don't have that much time living, we never know when our lives will end. So as long as you're young, why not do something that you know you can't do once you're old? Use your time wisely for studying and having fun. If you're in high school, enjoy every day of your life because once you're in college, things will get more difficult.