Depressed over moving out for college

Hi guys so this year my college has started. I gave cuet and my score dropped by 100 in normalisation from my raw score. Ofcourse i felt really sad about it, but still i made my preference list the best I could and turns out I missed out on many colleges near me in the preference list which I could have gotten. Now i'm stuck and might have to move out. I asked my parents to give me some time to commute and come back home...because Im not mentally prepared at all...they agreed for now. But i'm really...really sad. I dont want to leave. Suddenly my parents who haven't ever even let me have a sleepover and making me move out...its too much. I come from quiet a emotionally exhausting and challenging home, and throughout all of that me and my younger brother have supported each other. I love him the most in this world...I never ever want to move out and stay that far from him. Every single day I'm on the verge of tears...it feels like i'll start crying anytime now. It also feels unfair considering the normalisation and lack of info abt colleges. I've lost my apetite and get really anxious. Please someone tell me what to do...i feel miserable...its hard to swallow food sometimes...i dont like this...please someone tell me what to do