What would you do if you left EVERYTHING for a job abroad, youre very unhappy but financially have to stay?

financially have to stay become you dont have anything wiating for you back to your country...

That depends on what is making you unhappy.

If it is the cultural norms where you are now, I'd save money to move somewhere with a culture that might more compatible with your desires.

If it is because you haven't made friends yet, I'd figure out if there was any reason why I wasn't making friends and then do what it took to change that or I would give it time to naturally come about.

The solution is relative to the specific problem.

u answered the q8 urself , i wil be unhappy but i hav to stay , i wil try to get my everything back by money , for example if i lost my GF , i wil buy her a ticket to come n live wd me

Hi, I'm from England. I've lived in Finland, Singapore, Hong Kong and now Finland again, overseas for 11 years now.
The answer is simply "follow your heart".

There's no such thing as a bad decision, just your own reaction to circumstances. Do your best to see the positives in any 'alien' situation and you will find that most of what used to be 'problems' become insignificant. If you don't like where you are, then change the situation and take the consequences.
Follow your heart!

Kindest regards from Finland!
L81ker.

Our heart leads us anyway. It's a shame people don't know more about emotions, as reasoning about ourselves is really rationalizations. When you get outside your thinking and feelings by realizing they are not you but things you have, you have thoughts, you have feelings but you are the awareness looking at them, then you can be happy anywhere and not dependent. Dependence is really emotional dependence that your common sense tells you you need to break from, but your heart want the emotional security of home. When you learn to break, then you face that you have to survive here, where you are and you will do splendidly. Every person will be a love, a friend or someone you can help. Any direction I turn by head I'm delighted usually at the first thing I see.
That's independence day.

i'd stay and try to improve my life

I will probably stick with the job for a while, and look for another one in the same country if I have the working visa, if not, I will go back to my own country.