I've noticed that a lot of my songs (even the current and recent ones) have a lot of variation in volume and mastering, which causes many of them to sound bad. I think the reason is because I've never had proper headphones for music production.

The first reason is that all the ones I have had throughout my musical production, apart from the fact that they break down and break, sound different in several ways.

I've never owned proper music production headphones. Have mercy on me, I live in LATAM. :,U

I wanted to clarify this in case anyone notices that in my songs, the bass is strong, or sounds too high.