To stream on Twitch, besides setting up your account, you need a utility that can replicate your video to your Twitch account. OBS is a popular utility (there are others) that is simple to setup and start streaming. You need to make sure that your computer can handle running both the OBS Studio and the content you want to stream. Google OBS setup and you should find some useful information. Happy streaming!
Rich recommends the following next steps:
- Google OBS Studio
- Download and install
- Follow setup guide
- Watch the follower flock