Just purchased cassette to mp3 player

I tried to follow the instructions, but when I went to transfer a cassette to my mac (10.4.1), I couldn’t hear anything except on the headphones.
And then when I played back, I just heard feedback and myself walking around the room and cursing. How do I get this thing up and working?

Start with this set of tutorials in the Audacity Manual: https://manual.audacityteam.org/man/tutorial_copying_tapes_lps_or_minidiscs_to_cd.html

Especially this one: https://manual.audacityteam.org/man/recording_with_usb_turntables.html


Thank you. I will try that.