I'm not really sure if arbitrage trading is still profitable though, I mean in 2017 yeah, you can do it, buy from some korean exchange and then go and sell it in US exchange.
But now the game has changes, day traders or arbitrage traders are using bots now, so it's hard to compete with them if you are going to start with it. So if you are inexperience then most likely you are going to lose money in the beginning and now sure how you can sustain this kind of trading strategy as there are competitions, just saying.
1000% aggree with u back in the days all people using centralized exchange to do arbit trade and yes is profitable but now after DeFi coming is not much profitable sniping bot become profitable for quiet some time but recent smart contract become resitance to sniping bot
the difference is so low it would be great if u trade in one place rather than arbit