I worked at one of the earliest IP based Video Conferencing companies back in the early 90's. The video wore us out. We did video all the time for 3 years.
I've been working from home consistently since 2008, 3 different companies, and we never use video, it's all audio conferencing, except maybe for an all hands meeting where the company leaders are talking about something important.
If find video tiring and a waste of time. The video isn't good enough, or big enough to pick up facial "clues", and since people aren't in the same room body language is totally different.
Turn off the video everyone, and you'll be much happier.
Get a really good stereo wireless headset, that way you don't need to worry about feedback or sounding like you are in an echo chamber. My headset lets me roam all around my house, and since it's stereo I can listen to music between meetings.