Learning burnout

Hello good people. Basically what the title says. Do you also feel the burnout when it comes to learning?

I feel I studied/studying more during my job years than during my school and college.

For someone who 'struggles' with learning, its an excruciatingly painful process.

How do you manage to stay upto date and relevant in the ever changing technology landscape?

Do you also feel that as you age you somewhat loose the mental agility?