10 at each birth year? You're being very generous.
And it's not only about how much hockey skill someone has. It's as much about commitment, money, and what other interests/opportunities are you okay with giving up for what amounts to basically buying a lottery ticket. Unless you're a Crosby, McDavid, or another player able to blow the doors off everybody including 18-20 year-olds when you're 15. Now think about the AAA, AA, and A Major teams and how-with exceptions for the very best among them, and the teams that are truly at the top- how many of those players are interchangeable at each level and birth year. For anybody else that's a really, really good hockey player, you're not unique. There's a lot of really, really good hockey players and the competition is worldwide. Best to be realistic and prioritize having a good time.