How Do I Manage to Learn Everything I Need to Know to Be an Expert?

How do I climb this mountain?

Created in Midjourney with the prompt “a man stands small in front of a mountain of knowledge knowing he will somehow have to learn it all to move on in life”

When I think of the path I have chosen to take, I think of the mountain of knowledge I will need to absorb to call myself an expert. From my years of reading everything I can get my hands on, I know I am ahead of the game, but I think of all the books, and academic papers I have yet to read.