It may sound complicated, but a good initial setup will save you a lot of headaches later on. Setting up Streamlabs OBS to start broadcasting isn't complicated, but does require you to follow a few steps: get the stream key for your Twitch account (if that's where you're going to broadcast), set the resolution of the cast, do a few sound checks. You're looking at a potent app that's perfectly adapted for use with Twitch.
Streamlabs OBS is a tool that lets you broadcast anything online: your gameplays, a project you're working on, even just a stream of yourself talking.