LOOOL
HOW TO BECOME GRAND MASTER BY END OF DAY?

Well, normally to become a grandmaster, it takes 3 GM norms and 2500 rating. That will be a few games with typical time control, with no more than 2 per day. This means that it will take a few weeks.
Their is a surprising way though. If you win the world championsship, you will be awarded the GM title. This also counts with the worlds senior championsship and maybe the world junior championsship. They usually take place over a few days, though.
End of day???? Find a way to use Stockfish in OTB matches, go directly to National Championship you will get a high rating, but for norms you will need at least 6 months.

You could send $5000 to a diploma mill and have them declare you to be an official chess grandmaster.
HOW TO BECOME GRAND MASTER BY END OF DAY?
HELP.