bedtime procrastination

I've been trying to shift my sleep schedule and go to bed earlier. The first couple of nights, I did go to bed somewhat earlier and felt like I was on the right track. But since then I've been staying up later and later again.

I finally found a term for my problem; it is called sleep (or bedtime) procrastination.

One aspect of it is revenge bedtime procrastination, which I often have during the work week.

I don't usually have trouble falling asleep once I go to bed, so that is not the issue. Much of the advice one finds when searching is related to that, rather than in how to get yourself to go to bed in the first place.

https://www.fastcompany.com/3042679/how-to-break-your-sleep-procrastination-habit

https://solvingprocrastination.com/bedtime-procrastination/

raring to go

This expression was familiar, but I may not have seen it in writing before today.

Raring: adjective Informal.
very eager or anxious; enthusiastic: raring to go.

I expected it to be spelled "rearing to go", similar to the phrase "to rear up" (like a horse)

In fact, "raring" does derive from the term "rear" as in "rear up":
https://www.etymonline.com/search?q=raring

In fact, both spellings are acceptable:
https://www.csmonitor.com/The-Culture/In-a-Word/2020/0723/Are-horses-rearing-to-go-or-raring-to-go

Based on the number of search results listed by Google, the "raring" spelling is more than 5 times as common, however.