Don't let the vast UPSC syllabus intimidate you. Break the big target into several small ones and you will able to achieve it.
Planning is always the first step towards success and to execute it the next step.Plan every step toward your goal- from studies to mock tests to final exam.
Only studying and giving test is not enough to prepare for UPSC. Having quality discussion with fellow aspirants will give you different perspective.
Reading Newspaper daily acts as an integral whole in your entire preparation process of the UPSC.
Solving enough number of mock papers for both Prelims and Mains will make you confortable with environment of exam.
Since the UPSC syllabus voluminous you must ensure that every topic is given enough time according to its weightage.
Apart from all planning and execution, a healthy diet and regular sleep cycle palys a major role in keeping you fit for preperation.