Correct usage

I grew up in the 1970s in the South and it's always been that 'man up' type of attitude, get on with life.

How should this be punctuated with the get on with life phrase on the end ? Doesn't look right to me.

This sentence from Forbes online:

Season 9 of the show ends as it began, miraculously, one of the best shows on tv.

How should it be punctuated ? Is it just a case of omitting the second comma?

You can't just put a word in the middle of two sentences this way.

Could a colon or a dash work also

Season 9 of the show ends as it began: one of the best shows on tv.