Psychologically weak. Please help me.

I work with Indian railways, newly joined the organisation, here people are frustrating and they behave rudely though how nicely you talk to them, if you ask anything from them they get irritated, I feel like insulted everytime, their harsh words keeps on irritating me, I have made a complaint to higher authorities but everything is in vain, I feel like hell here, I feel like negative pressure and frustration in my mind, I m always in a mood of fight, sometimes o feel like crying,I can't quit the job out of responsibilities,I m trying hard to get another job for which I need completely calm and peaceful mind but these issues makes my nervous, frightened, sad, frustrated I have lost my blissful attitude please help me.