Whatever the case may be, you screwed up your studies in the past and now are stuck. You have 3 choices left if you don't want to spend the rest of your life rotting on a 2k pay.

1) Invest time, effort & money in upgrading your education (Diploma, NITEC, professional courses etc.)
2) Be an entrepreunur
3) Take up a pay for performance job, i.e. sales incentive or business results oriented

If you are not willing to do any of these, I can tell you jump where also the same. Nobody is going to pay much more than $2k for a N Level holder. In fact, the reason you get to $2k is because you stayed in civil service long enough to enjoy the normal standard increase, otherwise I doubt you will even reach $2k in private sector.

Do something & stop senselss complains about life.