You should try to never let other people dictate how you feel. That is always your responsibility. So take it. It is very had to do this. Don’t beat yourself if you slip. You will find yourself doing so. Just stop. And course correct. The more you do the more you will find it becomes natural. Most people are who they are. That is ok. Don’t try to change them just empathize with them. It removes all their so called power over you.