Count sheep's before sleeping until you fell asleep ,or Find tiring way so at night your body and brains will find rest and surely you will sleep even doing nothing.
I’ve been trying to sleep for hours but to no avail
Get 4 bottles of strong beer and you're good to go, mark my words and let me know if Im lying

when our body Got immune in alcohol beer will not be an answer ,we will look for much stronger until we become alcoholic