Time Blocking + No Timepieces
(technically two different techniques, but they play into each other so well)
Context: I'm a student, so all of my "work" is school stuff or fun side projects. Also, I just need to get things done my deadlines, and have no, "I'm at the place of work for X hours and need to appear active for all of them."
Time blocking is just going "I'm going to work on X for Y minutes/hours" and then doing it. If you get done early, great, you can stop. If you had a task in mind to complete, but didn't finish it in Y minutes, that's too bad, you have to stop working.
To be more flexible, I sometimes set up time blocks with conditionals. "I've got time in my schedule for a 2 hour morning block, and one after lunch. I expect X to only take 2 hours, but if it takes longer I've got the back up block." I'm cool with changing plans, but a key idea is to not end up "just working forever".
Time Blocking feels distinct from Pomodoros, which I know someone else mentioned. You can easily turn a Pomodor
No Timepieces is this: When doing work blocks, I strictly use timers instead of watching the clock. This actually extends beyond time blocks. I've gotten rid of my watch, and the clock on my computer. I try to make decisions
I do this because I noticed that it becomes much easier to loose steam if I realize that I'm 15-5 min away from the end of a time block. I also do it because I noticed that whenever I started to run up against hard problems, the very first distraction I would engage in would be to look at the clock (probably because it only required a head turn, and it doesn't feel like a distraction). When I was still habituating to No Timepieces, I would often look at my empty wrist, be surprised, and then realize "Oh, yeah, I'm encountering a hard problem and was trying to distract myself." Now a days I don't look at my wrist, but there is still a mental loop of, "I wonder what time it is?" and it helps me notice distraction.
Hypothesized Mechanisms:
Time blocking seems to mostly have the effect of making my commitments very concrete and clear. I'm not sitting down to "work for a while", I'm sitting down to work on X for 3 hours. In making a time block, I've already freed the time, so even if 20 minutes in I feel "Oh shit, I'm going to make very little progress" that's okay, because I've already checked that it's okay to spend 3 hours banging my head against something.
No Timepieces has given a lot of insight into how I distract myself. I've come to believe that almost all instances of me checking the time are some form of me trying to escape from the reality I'm in. "Maybe if I look at my watch, I'll see that it's time to stop working, and then I can stop!" or similarly it provides the escape hatch of, "hm, it's 2:30pm. Wasn't something happening at 4? Dinner? No, meeting Michael. Ooh, Michael's in town, I wonder what he's been working on?"
Immunity to change method (Robert Kegan) - book, "right weight, right mind" helped me lose about 10kg.
mechanism - cognitive method for emotional work that I wasn't otherwise doing. Some tricky method that enables the cognitive mind to access emotional systems without triggering them too badly.