Obviously you're so disgruntled with the people, the country, the system and there's no point in staying here.  It's best for you to settle back in your homecountry.  Life is full of adversities and you need not fiercely deal with unfavourable situations.  Be more rationale.  Practice good naturedness and humility and this may pave a better road for you.  It's also good for your health.  Remember that there's a higher power above us all who'll determine our fate with unquestionable wisdom.