Your first stream: a setup checklist
Your first stream will be rougher than you want it to be, and that is fine. The goal is not a flawless debut. The goal is to get through an hour without a technical problem eating the whole thing, so you can find out whether you actually enjoy this.
Work through the list in order. Nothing here takes long on its own.
A week out: the boring decisions
Pick one platform and stay there for a month. Twitch is built for live and its chat culture is the easiest place to learn. YouTube suits anything that will mostly be watched later. Do not try to run both at once.
Pick a day and time you can genuinely keep. Turning up predictably beats turning up impressively.
Decide what you are doing for an hour. A game you know well is easier than one you are learning, because you can talk while playing it.
Choose a name you can live with, check it is free on the platforms you care about, and claim it everywhere the same day.
The software stack
Three pieces, in this order.
Tracking. This reads your face and animates the model. VTube Studio is the usual starting point for 2D, and it works with a webcam or an iPhone.
Streaming software. OBS Studio is free, it is what most people use, and every tutorial you find will assume it.
The link between them. Your tracking app displays the model, OBS captures that window and places it in the scene. When the model is missing from stream, this connection is almost always what broke.
Install all three before the day, not on the day.
Audio is the one that matters
If you fix only one thing, fix this. People will happily watch a plain model with clean sound. They will leave in seconds over hum, echo, or a microphone that clips every time you laugh.
Use a dedicated microphone rather than your headset or your laptop. Even a modest USB mic is a large upgrade.
Get it close, roughly a hand's width from your mouth, and off to one side rather than straight on.
Record two minutes and listen back on headphones before you go anywhere near a live button. You will hear the fan, the keyboard and the room you stopped noticing months ago.
Set levels so your loudest moment does not hit the top of the meter. You get louder when you get excited, and you will get excited.
Keep the first scene simple
Four elements is enough: your model, your game or screen, your chat if you want it visible, and a plain frame or background.
The classic beginner mistake is building an elaborate layout with alerts, counters, banners and animations before stream one. It eats hours, it adds things that can break live, and nobody watching has any idea what you left out.
One scene works. Add a starting screen and an ending screen if you have time. Everything else can wait until you know what you actually need.
The dress rehearsal
Do this a day or two ahead, not an hour ahead.
Go live privately or unlisted for twenty minutes, and talk the entire time.
Watch the recording back. It will be uncomfortable. Do it anyway.
Check three things: can you be heard clearly, does the model track your face without drifting, and does the game audio sit under your voice rather than over it.
Fix what you find, then stop fixing things.
The night itself
The hardest part of a first stream is talking to nobody. Chat will be empty for a while, and the silence feels enormous from the inside.
Plan for it. Have three or four things you can talk about unprompted: why you picked this game, what you are trying to do in it, something that happened this week. Narrate what you are doing even when it feels ridiculous. That habit is most of the job.
Go live a few minutes early and talk while nothing is happening. It warms you up, and it gives anyone who arrives something to arrive into.
When someone does say hello, read their name out and answer them. That single moment turns a viewer into a regular more often than anything else you will do that night.
The day after
Watch ten minutes of your own stream and pick one thing to change next time. One.
Then schedule the next stream before the nerves come back. The second is much easier than the first, and somewhere around the fifth you start to find out what you actually sound like.
What to do next
Put the dress rehearsal in your calendar now, and your first stream a few days after it.
If you are still deciding what model to use, read the model guide first, so you are not buying under time pressure.
If you are not yet sure any of this is for you, start with the introduction and come back.
And if you want someone to look over your setup, or simply to sit in chat on your first night so it is not empty, get in touch. We do this with new VTubers most weeks, and it costs you nothing.