OK. This may become all personal Katerina... but forgive me because it is somewhat personal.
If ''there'' means U.S.A. then something so strong that must have drawn you towards Greece that you left friends, home and family.
Or, was there something not right for you in U.S.A.?
You also said something " Thats basically the reason why I came here thinking that I would work to live and not live to work like most do overseas." Very bold step and one that I respect.
You have a decision to make or if you wish to think slightly out of the box, you can still go back to U.S.A if you have or find a fulfilling job and work there for a few years and then come back to Greece with money, if you are still drawn to it. You are only 27

))))
Sorry my dear friend, the decision will be yours. And so what if you made a mistake? When I worked in Athens most of our local staff were ex patriate Greeks (because of their English language) and they kept going and coming back -- something that I could not tolerate in my life -- but some can handle it. Can you?
My very best wishes to you whatever you decide.