How to edit youtube content tags

I would have put a help tag/flair on this if it had been possible.

Left is what I see when I'm not logged into my account,

Right is what I see when I'm logged into my account.

How can I edit those tags in the right-hand space so that it looks the same as in the left-hand space?

All the instructions I found on Google(tube/reddit) were instructions on how to edit the tags of your own video when you publish it. But when I don't want to publish any video but just look for something new to watch