Late starter here - male, early 30s with only o levels and limited working experience, have been in cs for 1.5 years, only Mx15. Got B grade at first grading and received first increment. Only have 6 months left on contract. Current pay is 1.8k. Even if i somehow can go up to Mx15 with new contract, should I bother staying? I'm far behind my peers but hope to (almost) catch up by my late 30s.

How much increase would a bump to Mx15 be? Should I be seeking opportunities in private sector instead of staying in cs to build my resume?