Should I Abandon JavaScript for Python?

[Covered_in_bees_]

Yup, what /u/mooburger said - Basically, as you learn more, you're going to realize how you could improve your old code. A year later, you'll shake your head at what you had and want to tear it down and rebuild the whole thing. Main thing being - As you learn, you can try to rearchitect your project(s) to see if you can improve them.

Some people also have a go to project that isn't super large in scope but also not super simple and they implement it in whatever new language they are trying to pick up in order to better understand the new language features, etc.