Can I recommend you something that helped for me? Split your sleep into two pieces: six hours at night, and a 90-minute nap in the afternoon (no, it can’t be less than 90!)

It may be a tricky adjustment to fit that around everything else, but I personally switched to it within a few days. And after I had, I was a lot more productive: I could get up early *and* stay up late, plus having two “bed times” meant I had two of those bursts of activities where I rush to finish what I’m doing before going to bed.

I even found that once I switched back to a regular eight-hour sleep at night, I could actually do this and wake up at the right time. This may not sound like a big deal, but it really was for me