For me I've noticed that over time I've stopped worrying about the code and now mostly care about the data. How it's stored, how it's transformed etc. The code comes from how the data is managed.

As a new programmer, you certainly spend more time thinking about the details and minutae of the code itself.

Changing languages within the same group tends to come pretty easy, a C-like is mostly similar to other C-likes, flipping from python to ruby isn't all the terrible (or vice versa).

Moving between language groups is harder though, still struggling to wrap my head around lisp and haskell for example. Probably due to my skewed upbringing, BASIC to 6502 to 68k to C to python.