VETASSESS for 251312

I just want to know that if i evaluate my work experience ( 4 years as Occupational health and Safety adviser in oil and gas field with the same job description which is for the job code 251312) and my graduation certificate ( Petroleum and Mining Engineering) would the assessment deduct from the 4 years experience or the bachelor degree as i am in bad need for the points of bachelor degree and the work experience?. So my question would be there any deduction or the assessment will accept my full experience and my studying degree. The second question how i know the ceiling for my occupation to know who would i wait for 190 NSW as after evaluation my score might be 60 or 65 Thanks in advance.
U worked during studies?
I finished 5 years bachelor of engineering study then worked as HSE adviser. kindly if i am not bothering you Can i have your mail or number to contact you as i have some questions?