A general feeling of "This could be better" comes much earlier, even during the development (and doesn't really mean I will be able to make it better at the moment). After 6-12 months I will most likely know what the problems were. Maybe I used that code and felt pain or I learned new patterns from somewhere.
I recognize it and I am usually horrified by it. Every time I try to see this as a sign of my progress as a developer and try to learn my lessons.
Do you recognize specific things that you'd do differently now, or is it a generic feeling of "this could be better"?
A general feeling of "This could be better" comes much earlier, even during the development (and doesn't really mean I will be able to make it better at the moment). After 6-12 months I will most likely know what the problems were. Maybe I used that code and felt pain or I learned new patterns from somewhere.
This is good example of a positive view on the quote. Being able to recognize how you'd do things better is a great indication of learning.