>>987565Start by having a lot of money. "Day trading" is just a gentle way of saying that you're unemployed. You need to have your basic needs and living situation completely covered, otherwise you'll be dipping into your financial capital just to feed yourself and pay rent- counterproductive because you'd ideally reinvest this money. Then you can add brokerage fees on top of that, and you'll find out why nobody does this.
The idea that an average person is able to just quit their day job and subsist off money they make off investments day-to-day is fantasy. Your living expenses are probably minimum around 20-30k per year, depending where you live. Assuming a strong rate of return, you'll need a portfolio of around $200 000. Assuming a realistic rate of return, you'll probably need upwards of $400 000. That's assuming your standard of life is around the poverty line. To support a family or live in comfort, you need immense amounts of money to make it possible, at which point there is really no reason to personally "day trade" anymore.
You *will* be much better off working and having your investments managed professionally. Of course you can manage your own, but it's basically impossible that you'll be able to make better decisions that a team of people that do it professionally.
A lot of people made a ton of money off BTC. This is really nothing new. It's easy to make huge money once and ignore every failure- very few will be able to make decisions like that over and over again.
