Is it possible to make your own alcohol in one day?!
Yes, it will taste like a$$ but anything with sugar (sugar wash (sugar and water) fruit juice/etc) in it plus some turbo yeast will make a decent amount of alcohol in 24-48hrs.
Turbo yeast is sometimes used by distillers/moonshiners where they desire large amounts of alcohol in a short amount of time.
You can make ghetto wine with just some fruit juice(no preservatives) and yeast, but that will take in the 1-2 week range.
No, the sugars must ferment, induced by the addition of yeast in order for alcohol to be produced, which takes days.
No, I don't think so.