Whats the longest time you can do just shakes?

Hi.. I have been thinking today..

Can I go back to shakes for a little while? Not to break a stall, I am lucky my stall is over and I am 3lbs down since friday, the only thing I have done differently is.. CONSTANTLY EATING lol not mindlesy eating i weigh everything, but spend most my day eating that has helped for some reason.

Anyway its been stressfull, food, planning what to eat, stalls changing things up constantly , my tummy sometimes feels irritated my minds irritated. I also realised my weightloss was faster before i had surgery lol ( i know i know its the keeping it off that was the issue) but i dont know.. i love my sleeve for getting me back on the weightloss train as i ws just exploading.

But.. I am dreaming about juice fasting ( dont shout i know you low carbers are against things like that well my plan is not low carb lol i know juices are just suger etc etc . ) so dont lecture me but it worked in the past. but anyway im not going to do that, so i want to go back to shakes. and have abit of a boost in loss.

I love eating by the way, this sleeve has really made me crave healthy things that would not have crossed my mind , and i never used to enjoy the taste of food because i ate so fast.

When I saw someone, a stranger at a pub we started talking because she interrupted my convo about bmi with a friend and she said " i did shakes and lost 56lbs in 6 weeks" i almost fell of my chair she gained back 14lbs obviouslly there is always usually a regain. Anyway it just made me feel slow

So whats the longest time i can do just shakes for?