Hi,

In college you need not put much pressure on yourself. Enjoy the college life, and study the course you are enrolled into. Side by side you can pick up subjects on weekends or whenever you get time. Pick the subjects you are not fully aware of maybe history, maybe civics. Study side by side. Do this for the first two years, in 3rd year you can look for weekend IAS coaching, if available. Study there, and participate in test series. Through this, by the time you graduate you will be ready to give your UPSC exam.