Both

Does it get better as you get older, or worse?

Some things improve, some things decay.

At the same time you get the larger perspective on life (yes, that's true that it happens, though it might sound to you like Old People Tales); but you also sometimes get confused at why younger generations don't realise things that are evident to you (partly not just by age but by generational differences that have nothing to do: think "the Depression", "the 60s", "the debut of the internet").

But I will tell you one thing that I took to F long to realise: don't miss any train. There are many lost chances, many words I didn't say and many hands I didn't hold, back when I was younger, from / to a lg. I wouldn't commit the same mistake again: just DO it. Don't risk your life and limb. But every single smile is worth it - every single one.