Should I quit my PhD?
It's difficult to think clearly and make good decisions when you're stressed. Obviously, we can't tell you whether or not you should leave the PhD programme, but here are some suggestions to help you through this difficult time.


If you have a mental health issue, try to address it before making any big decisions.
Your school will generally have a counsellor to help students. Contact them and make an appointment.
Meditation can help with stress. There may be a meditation club, or free meditation lessons on offer at your school (this is particularly common near exam time).
Think about YOUR goals rather than just trying to please parents/advisors.
Realise that a PhD programme is very different than anything you've likely done before, so don't expect to feel comfortable in it for the first six months or even a year.
Talk to your advisor about the problem. If you don't feel comfortable doing this yet, perhaps visit a counselor first.
Try not to be overwhelmed by the number of problems you're facing. Try to think about each problem in isolation. Imagine all of the problems but one magically disappeared; what could you do to alleviate the remaining problem?
You may be able to take a leave of absence from your studies.
Try doing sports, it helps your focus and your health. In fact, this would be one on the first things to do no matter if you are at PhD or not.