How do u fast for 4 days straight (no food at all) and get rid of the nausea and dizziness?

I tried fasting for 4 days but only lasted till 43 hours because i got super nauseous and felt weak, how do i get rid of that without eating? I have to drop these kg immidiately, because im 51 kg and i need to be 43 kg quick. And would sugar free gum break a fast or gum with caffeine? And how do i distract myself from cravings please help me

How do u fast for 4 days straight (no food at all) and get rid of the nausea and dizziness?
Post Opinion