Being you can me difficult sometimes as people may not understand you. They don't understand why you do the things you do, or say the things you say, but that doesn't mean you shouldn't of stop being you. The people who do not understand you will eventually leave your life or just be more understanding, even if they don't get it. The people who come into your life help you to be you, the difficult moments with people help you become stronger. At those times when you are going through ugly situations and people are taking you for granted.
In your life, everyday, focus on positive thoughts and they will help you make positive actions. Being nice to people and having negative thoughts don't work for your benefit. When you do something for anyone but have negative feelings towards helping them, this can backfire on you. If you don't want to do it, say No. It's better to not do it at all if you have bad feelings about it. Be positive in thought and action and it brings back good to you!