I realise it's mathematically impossible

I've got a $16K bankroll, how hard could it be to win a $100 a day, using a little method instead of counting. I tend to jump in after the dealer hasn't busted 2 or 3 times in a row, depending on the feel of the game. I tend to go for games with 2-3 players. With a small bankroll, I've come out even over a year of doing this. Over the last 4 years, I've used various methods like this, with a small bankroll, and I'm slightly ahead in 4 years. 5 years back I got hit hard counting. Counting is the only method that's ever hurt me. It's possible that I'm not a great counter, though it's undeniable that my methods have served me well.