tips required

i am a newly qualified ca, who have done his articleship in in a small company,

now i m realizing that ca is a vast field that requires a lot of practical exposure.

what should i do to improve my practical knowledge in short period, should i go for specialisation in one subject such as idt or dt or any other

some says that for practical knowledge comes with time, please members guide me do the books help to improve or in practise it is not at all important