Here are the steps to stream on Twitch with OBS:
1. First, you need to download and install OBS Studio on your computer.
2. Once you have installed OBS Studio, open it and go to “File” → “Settings” → “Stream”.
3. Set “Stream Type” to “Streaming Services” and “Service” to “Twitch”.
4. Choose a “Server” that is closest to your location.
5. Copy and paste your “Stream key” from your dashboard on Twitch.TV into the “Stream key” box.
6. Click “OK” to save the settings and start streaming.
I hope this helps! Let me know if you have any other questions or if there's anything else I can help you with.
