I've only had two usernames: the one I currently have and kid_dk3.
My dad bought MC accounts for me and fours of my siblings all at once and chose our usernames- basically naming us kid #1, kid #2, kid #3 and so on with the letters "dk". We were all steves when we first started playing (none of us had any idea how to change our skins lol), so when we played on servers together we looked like a group of clones.
I changed it to Dragongirl_14 as soon as I figured out how to. Still a very basic name, but I like it and don't think I'll ever change it.
ok this is where it goes downhill and my 2015-2016 self is terrifying
<insert inappropriate username here>
chezypringle the rest were what you'd see in /seen.... i'm terrified
also did I mention I had a whole other account that I still sometimes use, not on cf, but lemme just list those users cause..-
lisiado_enano (disabled dwarf in spanish cause I am one thanks) EveryoneIsGreat
MickeyIsStoopid ArtTisTeMickE (This was making fun of my friend who spelled her name ArtisteMaddy or something when she meant Artsy) pellucidMickey
iiMickey_ (cough ii(name)_ gang @666Pae )
_UnknownCannibal (edgy edgy names)
TheAUDestoryrAj (my undertale oc Aj the alt universe destroyer hell yeah)
Stabpai (I mixed senpai meaning master with stab cause stabbing master I wasn't edgy I swear)
CiphErrorChicken (this was a dare)
Caitidids (og first mc user came from my nickname my grandmama gave me B) )