Upgrading the speakers in my Hyundai Elantra

I currently have a 2021 Hyundai Elantra sel and I love it so much but the one thing that bugs me is how horrible the speakers are- there is literally no depth to them at all. All my music sounds flat.

Because of this I was thinking about possibly upgrading my speakers. And maybe doing it my self. I don’t have much experience with working on cars or anything though.

Does anyone with experience with these kinds of things know how much something like this would cost if I went to a specialist vs doing it myself? Or if it’s even possible for a normal person like me to do myself?