Help! How can I change from being a really 'nice guy' into a 'bad boy'?

I only read half of this, but as soon as I read "the ladies I know describe me as one of the nicest and most passive guys who you could ever meet; who would do anything to help anyone" it seems obvious. There is a big difference between being nice and being a 'people pleaser', being nice and charming will get you women, you don't have to be a 'bad boy' at all, but if you're passive and just go along with what ever anyone says then women won't find this attractive. They are looking for a nice guy, but they still want a strong man who knows, respects and stands up for himself. Being a doormat and 'doing anything to help anyone' just makes you look like you're desperate for others approval, and being desperate for others approval equates to lack of confidence and the self esteem needed to be yourself, very unattractive qualities to men or women I'm afraid. I doubt that girls consciously see this in you, but the psychology of attraction is mostly unconscious, so they will consciously see you as nice passive guy, but they won't have feelings for you. I guess you would probably attract more women if you acted like a bad boy rather than acting like a people pleaser, but you're still not being authentic or genuine, so ultimately until you learn to connect with yourself it will be hard to connect with someone else.