I'm currently on my sixth day of living without it, stopped for a week or so, cold-turkey style. But it comes at a price - I'm also on my fourth day of insomnia :( I have been sleeping only two to three hours daily, unintentionally. I tried my best to fall asleep, avoided caffeine seven hours preceding sleep time, turned off all lights, tidied my bed up, worked myself very hard during the day, and so many more. I need it so bad, I'm not kidding :( Not kidding at all.
This is hard... this is very hard. This is harder than my long case exam for general medicine posting.