So im on failed attempt number two. Any advice on how to be a functioning human being and being able to sleep?

I was told when I could not sleep for days ,,that even if I couldnt sleep I needed to lay down ,,it made it easier for my organs to do their job filtering my blood .
Going days with no sleep at all damaged my heart ,,so even if I need meds to sleep I will take them before I become what they call slap happy ,,kind of like being drunk ..
My Daughters use Liquid Melatonin

Melatonin is a naturally occurring hormone that is often taken in a pill form as an over-the-counter supplement to aid sleep. It is most helpful in circadian rhythm sleep disorders, but it is frequently taken to alleviate difficulty falling or staying asleep (characteristic symptoms of insomnia)

you might also try meditation
Get comfortable ,,take in a deep breath and hold it as long as you can
Let it out slow ,,,listen to your heart
do it a few more times ,,then breath normal ,,in through the nose ,out through the mouth ,,,then listen to the rain ,,,until all you hear is the rain

I sort of day dream ,,think of good times on the water and how much I love sleeping on a boat ,,,

Hope some of this helps ,,your heart needs rest and our livers need all the help they can get

[youtube=https://www.youtube.com/watch?v=nDq6TstdEi8]