Not very lady like

I've been doing a lot of thinking. Trying to figure out how to handle certain situations. From a very young age I've been taught to behave properly. Act like a lady. Be polite. Be the bigger person. Be respectful and respectable. The problem is, that doesn't always work. I can go completely out of my way to be kind and if someone has decided not to like me it doesn't matter. So after great thought and discussion Ive decided why bother? Nothing I have done has changed anything. I don't want to be at all ugly to anyone. However if I am described as psycho, and unliked why not be considered psycho and unliked for good reason? I am by no means saying I will go out of my way to be spiteful, malicious or conniving in any way. I will just no longer hold back. For now on I will speak my mind. Holding it all in breeds resentment. All the resentment built up inside me is not only causing me stress but it trickles out to others. It will be difficult to let go but I bet it will be freeing as well.