I did it unintentionally for about a year I think? Possible more? I wasn’t counting calories and i sometimes broke fast because, again, it wasn’t on purpose, but it did help me drop weight (not sure how much I didn’t own a scale). It’s easier to get into if you have a structure and distractions, such as school or work, but either way you’re gonna be tired and foggy brained I’m fairly certain Maybe those go away if you’re eating enough calories, but I don’t know

Oh and of course you’ll be hungry at first, but if you still with it your hunger signals will disappear eventually
The main thing to keep in mind is - -ITS NOT A MIRACLE CURE- - aka, you can’t eat infinite calories and still expect to lose weight, it’s really just a system for managing your intake. Of course I’m not saying you don’t know this petal! It’s just the way the media and fans of the system tend to portray it (along with Keto and stuff) so I wanted to re-emphasise the importance of calories in-calories out.
Another thing I’d like to mention is that, in My experience, if you start eating normally again then intermittent Fast, it’ll be harder to lose your hunger signals cause your body is still trying to recover from messing them up the last time. It gets worse every time to stop and restart. Though again this might just be me, due to me doing it unhealthily? Not sure
Miscellaneous advice:
Black coffee helps
You may want to take metabolism boosters
Cut out liquid calories
The first meal should be light
Don’t eat anything too sweet as you last meal or part of meal, it’ll make you crave more sugar as you fall asleep
Hope this was helpful, sorry if I rambled I’ve been up all night and may not be 100% coherent