It’s not the fast that’s affecting your health, it’s the booze. You’re losing all the electrolytes by drinking alcohol. You need electrolytes (snake juice) while fasting. Plain water only works for a couple days.
Lose the booze and do at least one 72. Switching smoking weed to vaping and you should be fine.
I am much older than you are, but we are very similar in height and weight. I started doing rolling fasts on November 1, and as of today I have lost 53 pounds. I have been documenting this process on YouTube.
I hope you manage to find a system that works well for you, doing the rolling fasts is really working great for me, so far. I am so encouraged by the results, I am going to stick with it. Hang in there, you can do this. If there is any thing I can do to help support you or encourage you, please don’t hesitate to send me a message.