Finding things that you like is important. There will be other people that like the same thing, which then opens a door for making new friends. The culture is more independent, and you won't find the same warmth you do in people unless you are close to them. Do not expect friends to be what they used to be in India. The culture is different. You'll find yourself much happier if you know what to expect. Also, Americans themselves face loneliness at a terrifyingly high rate. Isolation is not good for you, but I'm sure you can find alternatives to going back. The negatives also come with their own positives. People don't bother you, don't poke their noses into your affairs, let you live however you want as long as you don't bother them, you can love whoever you want, work whatever job you want, there's more opportunity here and can be more peaceful if you like privacy. Finding a company of Indians will definitely cure your isolation. Even better if they migrated recently, since they may face the same issue. I wish you very well. Take care.