You have to live within your means.. This may mean cutting back on expenditure and even moving to a smaller place.

The main thing is to not get into debt, which you may find difficult to pay off.

Be careful with "part time" jobs, because there are too many crooks around..

My honest opinion is that if you're having financial problems and can't find any way to trim the expenses, then get out of Qatar before you get yourself into deeper problems..

Good Luck..