What you're looking for is inside of you.
It's important for us to live our own truth, to do the things we want to do in our hearts. Allowing somebody else to dictate our every little move is destructive to our mind, body, and soul. So be you. Say no if you want to, say yes if you want to. Many times physical and mental diseases are created by the fact that we're not being true to ourselves, we succumb to somebody else's will in order to keep them happy. If this is a continuous pattern then we can expect to eventually be in bad shape. So, if you want to be healthier mentally and physically, it's simple, take deep breaths and BE YOURSELF! If somebody truly loves you they will NEVER try and keep you from being YOU.