I'd say be realistic and gear your streams to educating. If you think you need to make perfect code, you'll become frustrated when you simply don't know something. As good/evil as SO and Googling are to our ability to remember, its what we do.

There's also longer term goals like Handmade Hero on YouTube. Think about some long term 2 year project and start making it. Make the next Spotify or PUBG. While that being successful would be equally nice, the channel could also be the more successful item.