I learned how to pick myself up after getting knocked down a few times. Not as easy as it sounds sometimes.
As far as technical skills, I learned CSS grid because @mustapha
was nice enough to write about it. I think that'll be exactly the thing I need for my next side project.
Great skill to know how to pick yourself back up.
Also, if you’re into CSS grid at the moment, @wesbos has an amazing free course that was sponsored by Mozilla. Check out cssgrid.io.
I too have taken the deep dive into Grid. My thoughts are Bootstrap et. al. are now obsolete. But....the community is just now realizing that.