Hating

I know hating isn't good for the health, mind, or my sanity, but I can't seem to not hate one of my ex-best friend. Even the thought of her being my ex makes me squirm, out of annoyance, not fright. If anyone out there can give me some tips to not hate someone, please do share your knowledge. It hurts to hate, I can't help hating, but it still hurts because the anger inside me is bottled up, I don't know when I'll explode. When I explode, it's not going to look good :/

Tomorrow I have to sit within 1 metre of her in the car. Ya Allah, please let her not speak to me, please let me not explode, please bestow upon me great patience, please occupy me with something else so I will not explode. Ameen.