Dearie,
I must say you are a lucky person with bright future.
Firstly, your gender is very important to answer this question. If you female; (a) Your minimum of N135K is a very good pay in a month. It will improve as time goes on, i.e earn you Doctorate degree. (b) You will be a role model that female undergraduate could emulate. (c) The job you have now is better off the ones you are still researching to get. You dint mention if you have strong backing on the NNPC, DPR etc job. If you do and could promise ten (10) years or above in these companies, then it is a good chance. If male; (a) You need more to cater for family and other needs. So, man needs to intensify efforts. (c) You need to get the job before you exit the one you are on.
There are so many factors that one needs to consider but all in all, pls remeber the old saying "Look before you leap".
I wish you all the best. Good luck