I live with insomnia and it is not fun. Sometimes I sleep 2 hours a nigh sometimes 4. Getting 7-8 hours sleep is rare and when I do it is wonderful. Have you tried any herbal remedies? They can help.
I tried Ambien and that one fell flat.Trazadone made me feel drunk and hung over the next day. I have learned to live with it somewhat, it is no fun.

I hope you can get some sweet sleep soon.