Don't try to walk before you can crawl

I had to reset everything and go back to the basics, ... You have to crawl before you walk, walk before you run, and (the knee) was all new to me.

You've got to crawl before you can walk and you've got to walk before you can run.

You have to walk up each step to get to the top of the staircase.

That way you don't have to crawl under it.

I'll crawl around here if I have to.