One could write a thesis on that. "How do they get the ball to curve like that?" Believe it or not, it's physics. The ball manufacturers have learned how to "make it automatic" by the design of the internal weight block and the external "grippy" reactive resin cover. Bowling today is almost an entirely different game from my era. What has that meant to bowling in general? Well, there are bowlers in the National Hall of Fame who have NEVER bowled even ONE sanctioned "Perfect Game of 300". Now days there are bowlers who have bowled "perfectos" more that 100 times. What does that tell you? Well, the game is different today, sadly.
6 years after funding my first online account( stocks ) and 2 years after starting futures trading and being serious about it. I was actually profitable from day 1 on stocks just because it was 2002 and I didn't even consider short selling( pure luck in a bull market ). The first 4 years on stocks were just passive investing but it took me 2 years to get a real edge on futures.
3 Years for me. Hardest part is finding out who you are as a trader but when youfind that out it makes trading alot easier. Hard part is obviously going through the trial and tribulations getting to that point.