Well,the very best option is to do your mbbs or earn a professional degree for securing future as in css exam,luck also counts.The professional mbbs and engineering degrees are also considered much prestigious in our society.Doing mbbs or getting higher education also enhances much one‘s stamina and abilities.Moreover,three attempts of css are allowed before the attainment of age of 28.So,one can groom and educate oneself accordingly meanwhile while acheiving higher education,if one wishes to give css afterwards.You can read preferably dawn newspaper daily,which improves English language,analytical abilities,provides essential knowledge for essay,current affairs as well as other optional subjects of css.Then you will ultimately be able to understand subjects better and provide the best answers in your attempt of css,after your education.Professional education is difficult and provides one with lots of stamina for hardwork and comprehension of academic work.B.a can be done in an year and half,but most people attempt css after completing their education.One cannot gauge you or say anything about your abilities,aptitude,capabilities or luck,but future is uncertain and unpredictable for all aspirants as sometimes luck doesn‘t favor and people are not able to clear in three attempts for one or other reason but then their formal education supports them.On the other hand,there are many those which qualify each year so one should stay optimistic and confident about ones abilities,as only we can be able to judge ourselves best and what we aspire to do.