Halfway up the hill, turn around once. The view from here already counts, and you climbed all of it.

Effort has a way of only counting once it is finished, which means most of a climb happens with no credit attached to it at all. Turning around interrupts that. The distance behind you is real whether or not you reach the top, and it was covered by you, on plenty of days that were not convenient.

Find the halfway marker in something you are in the middle of right now and look back at it on purpose. Ask what you could not do two months ago that you can do this week. Say it plainly to yourself, then keep walking.