Male 24 with no social life. Just work? Feels terrible?

I'm a 24 year old guy from India. I'm doing my PhD. I've never had a good social life but now with work/studies occupying a lot of my time I've been very miserable. I feel isolated and am suffering from frequent anxiety attacks about little things. For example I got my eyes checked and upgradd d my glasses with new lenses based on the doctor's priscription. I'm now worried about my eyesight. Moreover. I have zero friends to talk to. I com home from university,eat, and go to sleep. I'm losing my sense of humour and I'm depressed. Help. I live in a really small town where people are just not my type.

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