I found this pretty alarming and discouraging at first, but I gradually realized that for the most part, I was just interpreting looks of concentration to be negative when they were actually neutral at worst.
Even knowing this, it can be hard to ignore. I was recently giving a talk, and a large guy in the front row seemed to be outright glaring at me the whole time. His look seemed to clearly communicate "WTF is this idiot talking about?" I tried to ignore him, but it definitely left me a bit flustered.
When the talk ended, that guy was the first one to come forward and tell me how much he had enjoyed it.
That was one of the best things I learned in Toastmasters. Most audience members looked bored or unfriendly to me. Once I realized that this is just normal I got much more relaxed while speaking and have a much better awareness of the mood of a room.
I intend to start a stream but I am dissatisfied with my voice. Sound, expression, pronunciation. All bad. Terrible.
I went with the Blue Yeti... can’t speak highly enough... my first mic, so ymmv vs. other condensers, but the sensitivity of the device is paranoia inducing... high gain and I can hear myself breathing loudly across my apartment.
GL with pro help, my $0.02 is that self feedback can probably carry you till you need specific feedback.