You can live stream on Youtube in a few steps.
This video by Mr Technology summarize very well how to do it.
1. Create a Youtube account
2. Activate the live streaming feature. There is a 24 hours delay between the activation and the possibility to do a livestream. Take that into account when planning to do a livestream for the first time.
3. Navigate in Youtube Studio to schedule or start a livestream.
4. Copy the secret key
5. Paste the secret key in a streaming software such as Streamlab OBS