Throw away any hatred for anyone from your heart so that you will not carry burden for a lifetime. Forgiving others is the best attitude to take. Negativity about someone will keep peace of your mind away from you. Remember the good things about him/her, and let go of the hatred. Look this story:
A kindergarten teacher had decided to let her class play a game. The teacher told each child in the class to bring along a plastic bag containing a few potatoes. Each potato will be given a name of a person that the child hates. So the number of potatoes that a child will put in his/her plastic bag will depend on the number of people he/she hates.
So when the day came, every child brought some potatoes with the name of the people he/she hated. Some had 2 potatoes, some 3 while some up to 5 potatoes. The teacher then told the children to carry the potatoes in the plastic bag with them wherever they go for 1 week. Days after days passed, and the children started to complain due to the unpleasant smell let out by the rotten potatoes. Besides, those having 5 potatoes also had to carry heavier bags...