wow so good, can stay so long. u could do a statistical analysis of employment data in sg versus employment rate of stat grads. then plan your finances according to yr intended max length of stay.

pretty tough for outsiders to join civil service. if the job search so far yield no results, perhaps you might want to review the way u've been conducting your job search. get in touch with nus career office frequently to let u have priority on new job listings.

in the mean time, take up odd jobs at a vendor, hawker stall, etc to earn small money if u wan to earn a decent keep for the time being. usually ad hoc, small jobs are tax exempt, but dont quote me saying this.