I used to make songs, not so much any more. Creating a song is hard you have to come up with both a good melody and good lyrics.
What seemed to work great is I tape-recorded myself playing and singing the initial version of the song. Then I played it and sang on top of it, even doing multi-tracking sometimes.
I found it was easy to come up with new words and new adjustments to the melody while singing on top of an existing version. Why? Perhaps because I didn't need to spend energy trying to remember both the old version and the new version. The tape-recorder remembered the old version, so I was not afraid of losing it.
What seemed to work great is I tape-recorded myself playing and singing the initial version of the song. Then I played it and sang on top of it, even doing multi-tracking sometimes.
I found it was easy to come up with new words and new adjustments to the melody while singing on top of an existing version. Why? Perhaps because I didn't need to spend energy trying to remember both the old version and the new version. The tape-recorder remembered the old version, so I was not afraid of losing it.