He makes a good general point there, you're fighting your head switching out the gear all the time. Transferred to women it means trying to strategize all the time, but the better way is to just go for it. As he also says, he still gets knocked down, but he's not going to quit, he'll ride again. He's learning from experience, he feels what he's doing.
I remember the first time I tried slalom skiing as a kid (I'm Norwegian, we all tried skiing as kids), I was doing great just feeling it until my mother tried to tell me how to do it. I tried to do what she instructed and I fell almost immediately. I went back to going by feeling and I was actually doing it properly. Point here is that I trusted myself, the moment I didn't, I would fail.
In later years I experienced the same with women. I came to this forum and read other resources, trying to follow those instructions, but I failed. I then said "fvck it", went by feel and trusted myself instead. It worked, that's what confidence is and I recognize this guy has it too in his sport.