You should put all your songs through a normalization process. Then.... put them into the same device and listen to them back to back. There shouldn't be any need for you to reach for the volume control to turn them up or down. And that should be true even when the song is a ballad and the next one is a rocker.

Work on learning this and before too long, the songs will all tend to be ready for prime-time when you export them without having to do a bunch of level adjusting.

You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.