I know you wanted under $50, but I gotta share my experience with a particular headset.
I'm a bad player, plain and simple. I've tried multiple things to improve my game; watched online videos, spectated others, moved closer to the screen, adjusted controller sensitivity settings, put in the hours, but nothing worked.
THEN...I tried a new headset. It was like the 4th one I bought because the others were all garbage, but all of a sudden I could hear everything around me so much better. To my surprise, I started getting kills here and there too, which made the game more fun. I even got a few chicken dinners too. (still don't know how lol) I know it sounds weird to attribute such an improvement in play to a headset, but it's the only thing that changed right before my game improved considerably. I can't comment on the mic because I only play solo, but I like that you can slide it up and out of the way if you're not using it.
It's about $90, and it's wireless, and I really think it's worth it. Oh, and here's a link WITHOUT a referral code in it. https://www.amazon.com/gp/product/B071ZRTMXF/
Good luck!