There is one more aspect of trying. One has to be realistic in setting goals prior to commencing trials. See the number of candidates who appear in tougher kind of competitive examinations like JEE or Civil Services Examination etc. All Tom Dick and Harry who can afford to pay the application filing cost, fill the form causing a great challenge to the organisers. Question papers, blank answer sheets, table and chair for sitting while appearing in examination, invigilators, supervisors, answer sheet examiners etc. are required to be arranged for each of such applicant since they pay the application fee. No doubt, many of such aspirants, despite trying, end up in crying only.
I have read somewhere that many candidates who finally crack bank's clerk grade examination start by aspiring to become IAS officers only.
Let us encourage each other in sharing knowledge.