GLENN,heres a calculation with regards to your salary

house rent-------------- 9000
car--------------------- 2300
bar--------------------- 2000
communication----------- 1000
outing expenses--------- 2500
grocery----------------- 3000
miscellaneous----------- 250

total-------------------20050

it seems your salary is less by 50 Qatar riyal,that means you're going to pay more 50 riyal per month.