You could also just extract the audio, toss it in Audacity, and do a noise removal on your breathing. Most video editors have a feature like this as well. I believe the Yeti microphone has a "cardioid" setting, and if you're going to use that for voice (which is actually quite a good option) then you want the microphone volume low and it very close to your face. That's because of the way cardioid microphones are designed, they're great for radio, advertisement, and promos. I use this method with my AT2020 XLR. However, if you're an active talked you might whack your microphone, haha.
I would recommend just exploring different settings in an audio recording program for what options work best to where you're sit and where the microphone is placed.