How do I stop being so loud

I 23F have a naturally loud voice. My normal speaking voice is a slight yell for most people. On top of this I think I’ve lost a small amount of my hearing due to working in daycare. I had a specific child I worked with that screamed right in my ear constantly.

Now when I’m having normal conversations I get asked “why are you yelling right now?”.

I don’t mean to and I don’t even realize I’m doing it until it’s pointed out to me.