Microphone connecting to GarageBand, but not providing high volume or quality audio
I am currently using a SHURE SM58 Dynamic Microphone and have recently purchased a 3-pin XLR to USB cable to connect it to my MacBook Pro.
I opened System Preferences and selected the USB Audio Device in Sound > Input but have found that when I open GarageBand and select the Microphone, little to no audio goes through and I'm literally yelling into the microphone, only to faintly hear my voice when I play the track back to myself with the Mac's master volume set to the highest it can possibly be.
What should I do??
MacBook Air (2018 or later)