first thing i tried was taekwondo in 8th grade. i quit when i found out they fight for points and that the belt system was based on technique memorization and how many classes you've paid for more than actual ability and fighting experience... continued studying more traditional tkd on my own, ended up getting into tricking and freerunning from it
got into muay thai and some wushu in 9th grade, found out about an mma gym close to my place
started krav in 10th grade, loved the practicality. tried ninjutsu for the weeb factor but i didn't find much use in anything but the throws
finally implemented judo and bokator techniques into my fighting style in 11th grade
as you could guess my ground game has never been too strong, i'm mainly a kickboxer with some crazy throws. i can get out of submissions easily and that's all i've really needed; never lost to a submission ;) it pisses the typical jiujitsu+thai guys off. nowadays I don't go to gyms anymore for fighting practice or competition-- i just focus on real-world fighting applications and train at home as i've got all the equipment i need. once a year or so i get my fighter friends together and we have a loose-ruled fight night on private property lol. my "rival" (1 inch taller, 15 pounds heavier) and i always put on an awesome show since we're both advanced and like to throw in some tricking moves for fun like b-knives, aerials, flash kicks, cheat 900's, basically stuff that wouldn't be practical in a real fight lol. he hasn't beat me once yet though ahaha