Hey, sorry I forgot to mention the headphones. I'm using the Audio-Technica ATH-M20X https://www.amazon.com/dp/B00HVLUR18?ref=ppx_yo2ov_dt_b_product_details&th=1 and just the regular trs adapter that comes with it.
Thanks WalnutTheDog! My headphone adapter is TRS (two lines). But I did not consider a potential issue being that both my headphones have a mic. I just ordered a pair of proper studio headphones from amazon with no mic. Will update!
https://www.amazon.com/gp/product/B00HVLUR18/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&th=1