00:09:01.579: Output 'adv_stream': Number of dropped frames due to insufficient bandwidth/connection stalls: 11462 (3.0%)
This is the only source in the log for lost frames, and this was for the 100 kbit/s session. Combined with the info you only have 0.5 mb upload, it's a sign your internet connection is too weak in general to support any kind of streaming with a minimum amount of quality.
For better streaming, upgrade your internet connection to an upload of 5 mbit/s.
If this isn't possible, instead of live streaming, consider recording videos and upload to youtube after recording. This way you can get much better video quality, and it enables you to edit and postprocess your stuff, for example adding additional comments.