As a UK English speaker, I think perhaps the tune and maybe even someone singing the lyrics would be a help.
However the reason for saying all that is the need to know if there is room within the melody for a couple of the words "The" in various places.
An example is the first line would benefit from a "the" as in

It was back, back in "the" good old days.

Not so much being grammatically correct, rather the need to add meaning to the line.

Otherwise, a good few lines and is obviously the start of a good song, maybe telling a story?