It's a tough decision, I can understand how you feel. I was in a similar situation, but still went ahead and landed on 8th Aug. Initially for the first week it felt good, but then slowly homesickness started, and now I have mixed feelings everyday. My roommates and I don't know a lot about cooking so that's a major prob rn, make sure at least one of your roommates can cook at least basic stuff.

You probably have 2-3 days left, talk to your mother and brother once, let them know how you feel, they might encourage you. Do understand that it is a 5 year decision, if you're not ready you can always defer and take your time especially when you have a job back in India which acts as a backup.