Yikes! Song writing is how I get away from taking myself seriously. When I write a song, I untuck my shirt, kick my shoes off, and say whatever the hell I want!I heard more than one songwriter say: amateurs borrow and professionals steal. If you're going to steal, steal the good stuff.
It's meant to be humorous. Take yourself seriously when working, but not necessarily your output when it's done.
Or something like that. My bandmate of 20 some years says, "Just keep playing".
Same here. I semi-talk a lot of my songs, so melody is less of an issue.I have written over 300 songs since I began playing back in 1957. Can't begin to tell you how many times I thought what I had written was original only to realize a few days later that it sounded an awful lot like another person's song. Oops, back to the drawing board!
Much easier to stay original when I am writing songs in the style of the 30's and 40's that use far more than three or four chords and include diminished and augmented chords, key modulations etc. Three or four chords songs tend to run out of new melody lines.
All my songs are in F# melodic minor. So, no.
Forming entirely new ears takes a lot of listening. I'm not there. And you kinda have to meet people where they are.
Respect to those who push the Ear Envelope. They can't make much money, but all musicians should appreciate what they're doing.