Create a Twitch account and verify your email
Install streaming software such as OBS Studio or Streamlabs
Open Twitch and go to Creator Dashboard
Copy your Stream Key from Settings or Stream
Open your streaming software and paste the Stream Key
Set Twitch as the streaming service in your software
Choose your microphone and webcam if needed
Add your game or screen as a source
Adjust stream resolution, bitrate, and frame rate
Test audio and video levels
Click Start Streaming in your software
Open your Twitch channel to confirm the stream is live
Monitor chat and stream health from Twitch or your software