forget day trading... the real money... is with longer term trades. I am a recent convert to swing trading, but I am loving it. This is after SERIOUS effort to intraday trade. Books, coaches, SIM, demo,,, real trading.. I mean 1000's of hours.
I tried to become a professional football player for years but never succeeded, so nobody should try it as it is impossible. That is what you basically say. You cannot, so nobody can.
PS: what is useless: reading books, hire coaches, sim or demo (if you don't understand the market)...