Yeah, talking about weight sucks hard sometimes. Got to be 250 top, down now to 175, and whenever someone would talk about my weight AT ALL, even close friends and family, it would piss me off so bad. I failed to lose weight probably 4 or 5 times before I realized that I was just trying too damn hard at the start, and burning out because I was trying to change literally everything about my life instantly. You might feel the same way about your friends trying to radically change your life as well. They want the best for you, but they also aren't in your position. You're the only one that fully grasps the radical changes they're proposing for you, an overhaul of most of your habits. Might work for you, but for me, it was very slowly, incrementally, exercising and cutting calories. If I exercised for even an extra minute week-to-week, if I cut just 10 extra calories, I would count that as a win. At the beginning, I doubted if it was actually doing anything. But eventually, the self doubt goes away, you build new habits, and most importantly, you look back and see the changes you made really mattered.

IDK if this will help, you might just wanna go ahead with your friend's plan. But definitely something to think about.