I am not sure about that. Math fails to explain every little aspect of our lives or else the weather were 100% predictable. It's not.
For instance, statistically speaking I am only a high school graduate.
Even in physics when you start measuring certain attributes, there may be other aspects of reality that become opaque and impossible to comprehend.
I finished catering the Spire in my first city in 35 minutes. I'm pretty sure that defies math too.
I don't really believe in luck. I don't even know a good definition for it.
In my book, there are actions and results. I always try to acquire the right skills to fulfill my goals. I've always been sad when people call me lucky and fail to see beyond what they call luck.
Think about the rock-paper-scissors championship. Do you think rock-paper-scissors champions rely on luck? Or on math?
No.
If you don't believe in luck or math, do you think it's pure intuition? Are some people more psychic than others? Or do you think other factors come into play? I remember when I was a kid, my sister and I used to think up numbers between 1 and 10 and startle our friends because we always picked the same numbers. Some people accused us of cheating, but we didn't. I think we just knew each other so well, so it wasn't really psychic powers but more an understanding of the other person. I'm just wondering what you think it is. I personally think you're lucky ... which is a good thing. I know if I'm on a 50/50 guess in the spire, I almost always lose, lol.
In any case, with math and statistics you can calculate odds. For five items, getting five "wrong person" will give you the lowest odds of winning a hand. You may beat those odds and have a different result, but on average, most people won't.
That's why I usually stick to the math. I cater at least half of the spire most weeks, and I always win at least double the diamonds I spend, so it works out. I've taught the same methods to my fellowship to improve their odds, and now we can get gold a lot more often than before.
But yours seems to work for you, so I say you're right to do what is best for you!