Sa TS, why don't you look at it in a different perspective? Work hard and show na maayos talaga ang trabaho mo. Try to find something that will make that department improve. Malay mo, mapansin nila at manghinayang sila at bigyan ka ng more challenging na tasks.
But if di mo talaga matagalan, look first for another job bago ka mag-resign. Sa panahon ngayon, mahirap maghanap ng trabaho . Meron nga, pero baka contractual position lang o kaya i-under ka sa agency. So , kung aalis ka rin lang , make sure you will be in a better position.