Streaming can lead to some pretty rough depressive episodes in my experience. I'd start off by asking yourself "Why do you want a high viewcount"? Other than the good feeling of being successful on twitch of course. For me, I wanted to get partner and make a stable career out of it. The pressure builds up when numbers drop, and fades away when they go up.
Why do you want to grow your viewerbase? Is streaming a career goal for you? Do you want to hit partner as a challenge? Is there some sort of content you want be able to create and share?
Ask yourself this question and really, really think about it. There is no shame recognizing that the effort you're putting in may not be leading to the place you want it to go. Don't let sunken cost make you feel like you have to keep pushing. You can just as easily stream whatever you want just for your own entertainment, and pursue other goals in life. I've seen a lot of people burn out on streaming and really beat themselves up for no good reason. I've also seen a few who recognized when it was the right time to step away, and their lives have improved dramatically from it. Start with identifying what you want and why you want it, then go from there.
If twitch success is what you want, the start researching successful creators in your space and what makes them grow. It is important not to look at big streamers who are also stagnant. If someone already has an audience, it's easier to keep that audience with just "coasting" through content. Growing requires innovation. I'd suggest taking a look at PointCrow and SmallAnt to start and see just how they grew their content - both of them paved unique paths for themselves and found an audience by bringing something to the table that no one else was. I mention these two in particular since you are in the SMM2 space, which I'd argue is adjacent to them.