In my youth I never truly noticed change. I think one reason for that was that I relied upon words much more. Words are static, e.g. leaf, cloud, rain. If I add a verb I get, leaf fluttering, cloud drifting, rain falling. Less static on the surface, but still a 'top down' way of beholding the nature of nature.

When I began to pay more attention to watching than to thinking I began noticing the nature of change in real time, not as an abstraction to understand but rather as something to know and to put into practice.

So, when all else fails,
stop every now and then,
be as still as you can be,
to really watch what you see,
to enter what you watch,
to know "that thou art"

Note, This ancient Vedic dictum: Tat Tvam Asi, also translates as "Thou art that" or "You are that". This way you enter that which you are seeking to understand. In entering "that" you know without needing to understand. The mystery is preserved. It is so easy an infant can do it. In fact...

You can Google ‘that thou art’ (Tat Tvam Asi) and read enough to understand it thoroughly, yet still not not know. The only way to know the flavor of chocolate it by tasting it. The knowing is simpler than any words we can think. Isn’t this an advantage of the infant mind over the adult?