Sometimes you have to try to understand why you feel hatred toward someone, is that hate really justified? I have found in my 40 odd years of living that there are three main things that cause one person to hate another.

1. That individual has either harmed you or someone you care about in some significant way.
2. They exhibit behavior you strongly disapprove.
3. You may have a paticular aversion to certain race, gender, class, orientation, religion, etc.

So analyze and understand why you feel animosity towards this person.

If it is the first thing

Was the offense deliberate a misunderstanding or accident?
How much damage was done and was it permenant in some way?
DId this person realize the offense and try to apologize or make ammends in some way?

If it is the second thing

What about this person's behavior or actions offends you?
Can you persuade them to conduct themselves differently?
Do others feel the same animosity toward them for the same reason?

If it is the third thing

You have some soul searching to do, were you maybe raised to mistrust a certain group of people?
Did you have some sort of very negative experiance with a member of said group that has impacted your view of all persons within said group?

Then ask yourself, what benefit am I derriving by fixating on that person or person(s) what am I gaining from having this animosity inside me?

Is there another outlet for your anger, maybe like working out to de-stress?

I do not have the answers, but I hope some of this is useful for you.

I have had to learn over the years that someone will always hate you no matter what you say or do, just the way life goes. People are not rational creatures sometime.If you become obsessed with your enemies, then they achieve victory over you, by consuming your time and energy. Time and energy you could have used instead to bring yourself contentment and enjoyment.

Think about it.

Good luck with this

TJ