How can you make this font over the name in Minecraft / BAC?

E.g. More importantly - I'm 14 years old

With Insider, which is a subscription, you get the opportunity to buy this font. https://store.badlion.net/category/insider/

Do you get lifetime then?

No, is a kind of subscription, that means if you click on "buy" (at the link above) you will see the prices.

You can color it, put it together with a prefix or with a suffix. And free of charge with commands. I don't think you can make fat with commands for free. If you choose the free version, write back.

How does it work?