make sure the bedroom is dark and cool, play soft music,read a book, take a bath and if you can not then do something productive to waste time eventually you'll fall asleep
If you have any melatonin gummies those might help. medication like benadryl, nightquil, or other over the counter sleep medications could help in the future. taking a walk, taking a bath or shower, and smells from essential oils or flowers could also help. and relaxing nature sounds can help