You can delete a Roblox account by simply emailing the company, but there are a few other ways to do it.

Steps for altering your avatar’s appearance in every Roblox experience, from adding and removing items to changing your skin ...

Roblox players reach their maximum outfit limit quite often; here is how to delete your outfits so you can add new ones.

Thankfully, ROBLOX enables players to add multiple friends, and if needed, remove them too.