Well, maybe you should start respecting yourself 🤷
Seriously.
The benefit of the SM58 is that you can throw it with 50 others loosely in a box, ship it around the planet and then throw a full stack turned to 11 at it.
The sound quality is really awful.
It doesn’t matter for its use case, because it’s meant for garage bands and touring, where usually it’s the pa and the acoustics that screws up the sound more badly than the mic can.
But for recording you can get better stuff cheaper.