Because you’re trying too hard.
You’re trying to win.
You’re treating it like a video game. Or a soccer match.
Stop trying to beat the game. There is no level 10 boss. There is no mediation trophy. You do not get a gold medal.
Meditation, like a rare few things in our world, is something you take on almost for its own sake.
And the irony is, the less you try, the more it works.