Bereavement is so much an individual thing.
It takes as long as it takes for you, and there’s no way you should ever be thinking that you “should be over it by now”.
i lost my dear darling mum nearly six years ago. I honestly can’t say it’s better now than in previous years.
unfortunately her affairs were shoddily dealt with before I could physically get to her, and I think I put my immediate grief on hold, coz I had to deal with a lot of authorities and liars.
Back to your sleep problem.
if you don’t mind the taste of cloves, then try what I do, which is (for a start) put one clove in each cheek (wedge it between inside of cheek and your side teeth- bottom row.
ive never choked on them, and come morning, I either chew them, as they’ll have softened down, or just spit into a tissue.
otherwise, if you feel iffy about the above method, you could brew yourself a cuppa Clove tea, and that can help settle you too. Just don’t make a large cuppa, else you’ll be wanting to visit the loo, and likely the urge will wake you 🤦♀️
Good luck, hope something works for you.
im still awake, as unfortunately I nodded off this arvo, and consequently I’m wide awake 🤪