I had dogshit slip that bordered insomnia for a while. I forced myself into a habit that triggered a sleep response.

For the past 4 or 5 years, I shower in the dark and walk to my room and pass out. I avoid "turning on" after that shower. No phones, no lights, no anything

Your body needs to know when its time to sleep. Texting, reading, and computer time in bed counters that.