This. Accept that you will miss commutes occasionally. If things fall apart, go ahead and try the hail mary plan D (it works surprisingly often) but don't stress over it. Trying even when it looks pretty grim will enhance your statistical reliability, but stressing won't help at all. Gate agents can smell stress and anxiety, and some of them will feed it just for fun.

But do plan ahead, have one backup flight and don't be the guy asking other pilots to give up their JS priority because you rolled through KCM 20 minutes prior to the very last flight which will get you to work. I fell for that a couple times until I recognized the pattern.