You must be new to creating content on YouTube
because you can easily blur parts of your video
You don't need to install any software or any complicated mess Youtube itself provides anyone with the blurr tool so simply blur the NSFW part and upload your video
You might also want to mute some of the moaning I don't know if youtube is cool with it or not but that's something to keep in mind
If you don't manage to figure then just follow this