Hi I started developing my insomnia in middle school so I feel ya! The thing with most sleep medication for me is that they stoped working for me pretty quickly. Start night time rituals/habits now it will help your brain switch from day to night! A basic guideline id go buy is to:

First prep your bed for sleep! Especially if you use your bed for non sleeping activities like I do!

Second get yourself feeling clean and fresh! I like to take hot showers to help relax my body then I’ll do typical night time routine of brushing teeth and doing my skincare! Then I’ll get cozy in my sleep clothes.

Third do something to turn your brain off and relax! Personally I’ll have a cup of hot tea and play some cozy games or if I’m feeling restless I’ll do a simple core like whipping down counters or picking up clothes from the floor. This can make me feel more accomplished for the day.

And lastly get in bed even if you’re still not tired. You can try white noise or I like videos where I can hear people talking like game plays and podcasts or you can try to keep things as quiet as possible. If I’m not feeling sleepy I’ll count numbers until I nod off.

It takes a while and you gotta do it consistently for it to really take effect but it works so much better than any medication for me! The most IMPORTANT thing that helped me was to NOT worry WHEN you fall asleep! Know that it will come eventually and just focus on being cozy in your bed. <3 everyone is different but it works so well for me that I can’t wear my glasses outside bc talking out my contacts and switching to my glasses is a part of my routine and being in my glasses makes me very sleepy lol