I don't have anything to add to what advice has already been given, but I wanted to mention my sleep schedule which is opposite of most people's problems.

Going to bed and sleeping on time is not a problem. I can pretty much go to bed any time after 9pm and fall asleep in 5-10 minutes. My problem is with waking up. It's not that I can't, it's that I just naturally wake up very early between 5 and 7am. Even now, when I've been working from home for 2 years and I could have improved my life so much by sleeping in until at least 8am, I still wake up very early. I'm usually not even rested, and I feel tired all day. I really don't have much to do at that hour and my partner is still asleep so I just play video games for a couple of hours. There's thousands of webpages of advice for not being able to sleep or sleeping being able to get up, but I can't really find anything for my problem.