Oh Im so sorry I know how this one feels sweetie. Its just so so pants.
Its not fair.
So scream cry shout have a cuppa and then re focus gather your thoughts and your strength and keep going keep looking for that job another will come along put this down as experience next time you will more prepared maybe even a little bit more confident?
Dont let one set back stop you from believing and hoping, and yes i know its easier said than done sweetie.
Take care of you. Xxxxx