Hi Amber,
Welcome to the CA fraternity!!! Nice decision of yours, to get into practice.
Since indirect taxes is a procedure oriented law, it requires more practical exposure in different areas. If you intend to join a firm, please choose one, which gives you the greatest exposure, irrespective of the monetary return.
Please start reading various judgments of CESTAT, Hon'ble High Court and Supreme Court on the subject, so that you will gain an in-depth understanding of the subject and the way in which sections and rules are interpreted by the judiciary.
And lastly, please do not stop reading... WISH YOU ALL THE BEST!!!!!!!