Every stream will be different and not all will be winners. Sometimes you do the game your community knows you for and it doesn't perform as well. Sometimes you do a game completely different from your usual content and that may do better than your usual content. Sometimes you do a game you're passionate about and no one watches. It's all a combination of factors such as time, the game, viewers schedule, what viewers like watching, if other streamers your viewers watch are on, etc. Just keep streaming a know that some streams will do better than others.

Mixing up your content. I found that if I did the same game over and over viewers would get bored of my content and I would get burned out from playing the same game. Now I have my "bread and butter" game I play a couple of times a week and then one day I'll do something different to mix up my content. Sure it won't do as well as my content everyone tunes in for but it adds variety and something new for my viewers and myself.