surround yourself with happy people
Why would one single person have so much control over your emotions? It's not fair to yourself. When someone says something or does something you don't like, just brush it off. Remember all the things that make you happy. Surround yourself with people that never let a smile leave your face, and that make you feel good about yourself. Every person should have that one person they can always go to without judgment. I believe it's important to surround yourself with good people because it makes for a happier you, and that's always healthier.