Already profitable??

Been learning day trading for about a week and I'm profitable on a demo with a 70% win rate over 40 trades. Am I getting lucky? I keep hearing that day trading is super hard and it takes years to become profitable. Maybe it's because I'm on a demo account, but I feel like it's super easy. Is it normal to start out profitable? This is a genuine question as I'm very new to day trading. Should I try my luck with a funded account, or keep practicing for a while? Edit: I'll post again in a month with my new win rate over however many trades.