I hate my ex in order to get over her. is this right?

It is not wise to hate anyone. Feeling angry is fine, but to hate only closes doors, and people allways ask themselves "do I want to do business with this person". It is supposed to take about two years to get over an ex. It is something that you must work through. Hating your ex will only leave you stuck. You will have a better reputation if you treat people with respect.

People handle things differently. Maybe you find out the reason you can't get over your ex first.

You won't get over your ex by hating her and it actually has the opposite effect. You will end up being hung up on her as long as you keep on hating her. Hate is like an acid that tends to destroy the vessel which contains it and it might smoulder you someday and affect you rationality. It would continue to eat you until you get old and wrinkled and lonely. Your hate may make you miss the good things in life and of another door opening for you wherein you may find the love that is really meant for you. Instead, I encourage you to forgive her and let her go...because in forgiveness you will have peace inside you. Learn your lessons and don't close your heart to possibilities.