Your chart suggests that you have strength in your chart to sit on position of power, be it in government or private sector.
Your chart has more power to do business activity compared to doing a government Job.
You should try for the exam and this year could be critcal, incase you don't succeed then you should take a private job and rise in career in a business role and later even start your own business.
You will succeed in business after 5-6 years.
Sun and Mars in 9th house with Rahu in 10th house, lord of 10th and 5th house conjunct in 6th house, all these indicate strong position gaining strength in the horoscope.
Rahu dasha activates nakshtra lord venus in 7th house and 7th house lord conjunct rahu in 10th house, indicates business inclination in the long run.