think of this,
if you had the option to not have either your family or your friends( good friends) who would you choose? You would have no memory of them,they would have never existed for you. So you wouldnt feel guilt or miss them. Who would you choose? If its family then, try to find ways to bring them here or just get back there.If its friends and they are here, then you can be happy here.
No one should live a sad life. You have an option.