Have a screen on your bike computer without speed on it. Our pride/ego makes us dig too deep to maintain a certain speed or not be passed by people - me included!. When climbing your power number is king, I typically have 3 or 5 second power showing. It can feel painfully slow but if your target is, for example, 180w for the ride then that number is doable both on the ascent and descent when the ego is taken out of it.