I'm willing to bet: you are not as good at poker as you think you are. Neither am I. And that's perfectly normal. The majority of people coming up the learning curve tend to overestimate their skill level.
This is a long-standing cognitive bias echoed as far back as Shakespeare:
The Foole doth thinke he is wise, but the wiseman knowes himselfe to be a Foole (from As You Like It)
More recently, David Dunning and Justin Kruger of...