(a lot of chess-dot-com-specific stuff)
Initially, I was losing to Martin (250 ELO), the bot that is widely considered the worst. I learned how to beat him consistently.
I went to a 400 ELO bot. First, defeat, then winning streak.
Next step — 700 ELO Bobby Fisher-loving bot. Same story.
But today, on my third try, I defeated a 1100 ELO bot! First time I lost, second time it caught me and forced stalemate, third time I won!

I feel fantastic!