Hey there,
Everything happens for a reason! The idea of getting a job where my friends are may seem great, but it’s really not. Friendship’s get ruined and kids get *****y. Ive never really gotten on with any of my work colleagues when they’re in any sort of education, even if it’s not my school or even if i didn’t know them when i started work. Kids in school when they work treat it like a ring of drama, you probably missed the boat for good reason.
Don’t feel down, sad, frustrated, just try to learn from it. What would you differently for a job interview in the future? Easy answer because you already know! You said you didn’t prepare properly, well thats something small to change for the next time. Don’t beat yourself up!
Life’s full of ups and downs and rejection and acceptance, dont let one small thing get you down. In a couple of years you won’t even remember this!
Best of luck.