Just wanted to let you know I can relate. Sounds a lot like my cycling - though I just started the program. Having SI nearly every day of your life is exhausting, I found little solace.
I don't know if you have ever been on Abilify, but it really helped for my SI.
So sorry to see your mood tracker is worse than mine. If you have never been to a sleep clinic I highly suggest talking to your gp or psychiatrist about it. It worked for me when I was completely hopeless, fatigued and in physical and mental pain.