You don't have to believe or follow your thoughts, you can choose to watch them with playful curiosity; they can be very amusing when you don't attach to them and watch your ego trying to drag you into negative behaviour.
I like this, this a very good guide to being happy and successful in life. Though I do disagree with the gender roles and how it urges you to do all if those things listed, you don't have to do all those things to be happy or successful.
do no harm (but take no shit) Never purposely - with evil intent - betray, use, hurt, take, squash anyone. And when you stand for yourself people may still feel hurt, betrayed, used, taken, squashed but that's their stuff, not yours. Your job is to be kind, compassionate and loving as you say 'no' and 'that's not for me' and 'no thank you.' It doesn't make you mean to say no, it makes you self-loving.