Advice.

السلام عليكم

So, basically I've been in a pretty bad situation lately as I've been led on (not romantically) about something. Believed that it would turn out some way but it ended up taking a u-turn for the worst. My hopes were crushed, but الحمد لله على كل حال My Lord knows best.

When I was doing istighfaar today however, each time I closed my eyes, I kept on remembering that thing and my mind and heart were plagued with hatred. I know it is not good to feel that way, especially during istighfaar. I felt embarrassed and disgusting as I'm asking for forgiveness from my Lord, but I can't seem to dissipate the hate for His creations from my soul.

I would like some insights on how you people handle terrible situations in your life, while keeping your Tawakkul strong and soul free from hatred and thirst for vengeance.

Thank you. Ma'a salama.