UPSC exam preparation needs thorough planning. It is very important to analyse the previous year UPSC question paper as rich source of information plus they give you an insight into the mindset of IAS/UPSC Examination paper-setter.
Self study is good but the right guidance is also required to clear UPSC exam. Make proper time management and get guidance from professors and experts.They are the only one who can provide you with proper guidance for clearing UPSC or you can go at any institute for proper guidance like:
Chanakya IAS Academy
Byju’s
sriram’s IAS