Took premium membership for ease

I took premium Salesforce Energy and Utilities Cloud Accredited Professional online question bank membership because i did not want to waste my time on useless subscriptions and PDF sample questions. I have earlier taken up certification exams and had chosen this way to prepare. I have been successful every time and so i did not want to burn my hand trying other methods. I have the best way to review my success and also my failure and clear the certification exam in minimum two months of the unlimited membership. I have made a journal to keep a tap on my strengths and weaknesses.