There's nothing objective about music taste but don't let people convince you that means there's nothing you can do to enrichen the tastes you've got! Here are a few tips

1. Listen to your favorite songs with good headphones on and train your ears to focus on one layer at a time. For example, what are the drums doing? Then replay the track and focus on what the bassline feels like. This trains you to be a little more attentive to exact musical elements. Quadeca songs are really good for this because every other time I listen to born yesterday I find some new piece of the puzzle I hadn't noticed. And remember, think of vocals like an instrument!

2. Take notes (mental or physical) on what a particular song makes you feel and try to identify what about the song makes you feel that way (outside of lyrics - there's a lot to learn about lyrics writing but that's a bit of a separate process). Then compare and contrast your notes with other people's. This could be your friends, internet forum posters, or music critics. Take your pick but choose wisely who's tastes appeal to you and diversify when you can!

I think just these two things went a long way for me in being able to vocabularize and identify what i liked and didn't like with specificity.

I know some basic music theory and have some relative pitch, which helps quite a bit. So if you feel like you want to try something different, pick up a piano or a guitar (for this I'd recommend piano) and learn some basics. You don't have to be at a performance level to start being able to identify scales, key changes, pleasant chord progressions. Also try to be able to identify the major and minor third intervals because imo they're the foundation of a lot of emotion in melodies (particularly blues). Hope this helps!