I can vouch as a newer Twitch streamer, that it is hard to start off. But having others you know already a little more established boosts how quick you earn and grow. It is the same as any of it and you don't need top range everything.

You can get yourself a nice PC, a headset with mic, get the best webcam you can get and have goals of things like gaming chairs, standing mics and more and just keep going, working hard at it and slowly you keep growing.