Teach me how to do this right

TL;DR: I know I’m not doing this right but I’m looking for guided resources to learn more. Also, tldr’s belong at the top.

I’ve gained over 65lbs in the last five years and I know that’s because instead of walking around in the forests and mountains for a living I got a sit down job and then the pandemic happened. (I also legitimately think I learned to punish myself my gorging myself, not to mentioning substituting thc for tlc, but that’s another topic altogether.)

Now I find myself in a situation where I need to detox as quickly as possible and I figured I’d go back to my “trail schedule” of only one solid meal at sundown and homemade miso soup for lunch that I can drink from a thermos along with tons of water, green tea, and two cups a day of dandelion tea.

I just learned about the 16/8 breakdown before posting this, and my meals fits in that eight hour window, lunch being around 10:00am and evening meal around 5:00pm…but what else do I need to do? What apps should I use?

Currently on day two of this new routine. Any suggestions would be appreciated. Thanks in advance…