It can sometimes be expensive to stay in touch with family back home. Do you have options for contacting them more often?
A common reason for taking a foreign job is to send money back home to help out. If that's the case, I can see why it would be difficult for you to decide whether to stay or return home.

I am also curious, as @naturegirl15 already asked, whether you can communicate easily with people in the new country. This makes a difference because it could be helpful for you to find someone there who you trust and feel comfortable talking to.

Very often companies don't treat their employees well at all, especially those who come from overseas. So sadly the problem you have is shared by many.