If someone calls you fat or something else that feels bad to you, it’s important to remember that words can only hurt you if you let them. You are in control of how you feel about yourself, and no one else can dictate that. Just because someone says something mean doesn’t make it true.
If you find yourself getting upset by what someone has said, try to take a step back and examine why it bothered you so much. What is it about their words that made you react this way? Once you’ve identified the root of your reaction, you can work on addressing it.
If someone repeatedly says hurtful things to you, that’s a different story. In this case, it might be necessary to distance yourself from that person. There’s no reason to subject yourself to repeated mistreatment.
At the end of the day, you are the only one who gets to decide how you feel about yourself. Don’t let anyone else control that. Stand up for yourself and don’t let others bring you down.