I react very well to lithium, but everyone has different bodies and brains.

Aquarius33, I know the computer connection is comforting. But it could be making your insomnia a lot worse. Most modern computers and mobile devices give off a blue light. Blue light on the light spectrum activates the optic nerve and the brain.

When I couldn't sleep for years, I either used my computer or iPhone to read. When I was inpatient in December one of the counselors mentioned that a major cause of sleeplessness is staring at those devices and basically waking your brain up with the light.

I got a cover for my iPhone screen that blocks blue light. Everything looks a hair yellow, but I have found it actually works. I stay tired and head off to sleep so much better at night. At first I thought that my pdoc had prescribed really good sleep meds, then I found out that is was only on a very mild relaxation drug.
I try and limit my screen time shortly before bed regardless.

I hope you have some great sleep.
Pleasant dreams.