This idea is more old than you.
Remember that to make this you need to move fiat, and this means a few days to finish the whole process, so there's the risk of the price falling even more.
It's almost entirely pointless doing that unless you're constantly moving large sums of money since there are already so many other people doing it that it's only barely profitable.
There's also a significant delay when depositing, and the windows for potential arbitrage can be only seconds-long. You'd probably be better off doing some kind of triangular arbitrage with a bot between pairs existing on the same exchange, but even that's probably already too saturated to the point that it feels like you're fighting against the exchange itself.