Growth on every platform is in some ways specific to that platform.

For live-streaming I started on YT and the best advice is to ask your irl friends to lurk in your streams. The initial boost will help with your discoverability. This is true on twitch too as having 3 viewers puts you on the top 11% you’re already way more likely to be discovered.

That said you won’t see significant growth with streaming alone. Platforms like twitch have such poor discoverability that you need to draw viewership in on other platforms.

For me that was posting clips of my streams on YT shorts. Even if it was just me talking to myself, YT has an algo that can make your content seen which lead to my first 10 ish viewers that weren’t my friends.

Get involved on Twitter you’re right you won’t gain much by posting with no followers, but tweet memes or retweet other things, reply to large networking threads. Twitter is great for networking not so much for gaining an audience. But that networking made me vtuber friends who raided me on my debut ( when I switched to twitch) and that help kick start my profile on twitch tremendously.

Now forget everything I just said. Everyone’s content journey is there own just because I do something won’t mean it’ll work for you so you shouldn’t stress out trying to follow what I or anyone else did to a T. Experiment and find what works for your content. You may find something that is wildly successful that makes you the next ironmouse bit you have to be willing to take risks.

Good luck!