Imperfect rhymes used to bother me, but after years of singing in a choir at a Catholic church, with many modern songs that have only approximate rhymes, I got comfortable with the sense of closure that they brought. Meaning is more important than rhyme. The congregation didn't seem to mind, either.

I have written a couple or three original songs, and I wouldn't have bothered if I had had to wrangle the lyrics till all rhymes were perfect.