syllabus in 3 months? My basics are cleared.

The level of confidence depends upon how much you practice. So to gain confidence, start solving a lot of questions. Don't directly jump to advance level first perfect your theory part then start solving from the basic question then go to the advance one but note that if you can solve lots of basic questions, move to advance questions asap otherwise;, it will be time-consuming. Mostly try to solve pyq question last 44 years where you will gain a lot of confidence don't just solve these questions learn from each question prepare yourself mentally for this exam. keep solving and enjoy the process

All the best 👍