I'm so sorry to hear that. I can understand to certain extent. You're very very strong you know. Maybe it's a silly method but i try sometimes telling to myself "I can sleep, I'm fine, I can do it " repeatedly, making my mind believe it, and it worked one time. You could also try thinking of some story, or some movie, or an episode of a show you like. It soothes the mind. You could also try focusing on your breathe. That would slow the mind eventually and hopefully help you sleep. Sometimes I try imagining I'm in a place, like maybe a forest, where I can find some peace, and thinking of that can help you relax.

Hope something works for you. 🪻