Be assertive

It is often argued that in a conflict there are only two choices: confrontation or flight. Assertiveness raises a third way to maintain our position, draw a red line and wait for the other to pass it tired. A simple way to define it is how the ability to say NO. Social relations were not raised in terms of winning or losing but to reach an agreement.

http://www.psychologytoday.com/articles/201310/the-power-no

Assertiveness is the ability to self-affirm one's rights, while respecting the rights of others. We can only relate to the satisfaction of both parties if we feel we have the same rights and deserve the same respect as the other, the person with true self-esteem will not defend, but to be respected; it will not win, but to negotiate.

http://www.autourdelalune.com

We will be better able to handle situations we get out of ourselves and look to others from their point of view. Before acting, you should see from where the other person speaks. The assertive response serves to set limits, no in order for the other to change.

The same message can be conveyed in a respectful or disrespectful. It is not the content but the way in which a message is transmitted that matters. The assertive person knows when and where to show what they think and feel, using appropriate social skills, so no one can force you to do something you do not want to do.

And either way: you can always try again!