so i checked, and I don't have any 'direct monitoring' option there..

I am fluctuating between 2 options..

1. get a new sound card with headphone monitoring, or
2. Audio Mixer, looking at this on walmart: Donner Portable Stereo Line Mixer,4-Channel,-DEL-8i2. But not sure if it will actually duplicate a mono signal to come through both outputs

ALso you asked above, i don't have the exact link of what i bought, but it was similar to this (a simple usb on one end and a 1/4 male jack on the other):

https://www.amazon.com/SiYear-Interface-Converter-Connector-Instruments/dp/B07VN4FZN9/ref=sr_1_2_sspa?keywords=usb+sound+card+1%2F4%22+jack&qid=1648086751&sprefix=usb+sound+card+1%2F4%2Caps%2C143&sr=8-2-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyTlJMVlJWTU5UWjBQJmVuY3J5cHRlZElkPUEwNzY2ODU1S1FLTzlIRDBLMEg2JmVuY3J5cHRlZEFkSWQ9QTAxMDYwOTQzSDk1U1VGRllVUUxPJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==