I've tried a few variations of fasting over the last ~3 years and here's what works best for me. Because I tend to snack, I have time-boxed my eating windows inline with a fasting schedule, so:

- No breakfast, just black coffee - First eating window (~11am - 2pm) - Second eating window (~5pm - 8pm) - No eating after 8pm

I've played with three eating windows and it also works quite well. I cheat on weekends, Fridays and sometimes in social situations. Most important thing to note: build a routine that works for you, nothing is sustainable if it isn't built around your specific lifestyle. If it doesn't work for your lifestyle, it will never sustain.. think about it as product market fit for your body + health.