It’s the current fashion (just like the diagnoses! :D)
Amitriptyline was once the gold standard, then Nort.
Amitriptyline would be even better for prioritising sleep than Nort (but I vaguely recall you tried Ami?)
EDIT: found I think Melatonin is really helping me - #7 by sheepdog_lord
So yeah, consider Amitriptyline too.