Your previous name is safe for 37 days, meaning nobody can take it until a week after you regain the ability to change your username. So as long as you change it back once you can, you should be fine.
Ima make an alt called "KylePokeCraf" (No T) and make it NobleVIP NO1 WILL EVAR KNOW (Exept if you red this)
Admittedly, I am not the best about determing sarcasm, but anyways, enjoy your new name Kyle, even if you're just using it for 30 days.