Start listening to some classical music...find one of those Fall asleep Utube videos....
ASMR videos on youtube.........those were my life-saver! EVen if you don't have ASMR (I do) you can use them to relax and fall asleep.
totally agree with Steve on this one I came across these videos very early out of my switch and it actually is what put me to sleep very soothing and calming