My advice. Just index. It's probably better for you.
But if you really want to learn, read this:
https://www.amazon.com/Philip-Fisher-Collected-Works-Foreword-ebook/dp/B008847LKW
I recommend you do some off Internet research. The more things change the more they stay the same ... Supply and Demand drive the stock markets.
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Classics:
by Philip A. Fisher | May 29, 2012
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A primer:
by Carolyn M. (Ed. ) The Staff Of Babson-United Investment Advisors, Inc.; Finnegan (Author)