It seems you know how to study, so start consuming books and taking notes. There are hundreds of authors and an infinite number of trading methods. You will be overwhelmed initially. As your knowledge grows you will start to see similar themes and consensus across multiple authors. I've always maintained that society's defined knowledge on any topic is inversely proportional to the amount of published material available. So there is a lot of BS to wade through and validate. And its a consuming addictive topic.
If you start down the system development path, be very thorough with your understanding and practice of out of sample testing when you backtest.
Don't be in a rush to enter the markets until you properly understand how to manage risk and protect your capital. Nick Radge has a great little ebook to get you started here, Successful Stock Trading - A Guide to Profitability, I would recommend you start with that. Its available online as a pdf (somewhere..?).
Longer term trading/investing - ONeil, Minervini, Nicholson, Stan Weinstein, Guppy, Alan Hull (bit out of date now). Finding a stage 2 trend to get on in the current environment will be a challenge.
Shorter term discretionary TA - read all the Peter2 threads here on AFL (hard to surpass Peter's content).
Systems trading - Nick Radge, Kevin Davey, David Aronson, Howard Bandy. Search all posts by ACrary (Alan Crary) on the elitetraders.com forum.
Psychology - Douglas, Trading in the Zone
Software - Amibroker & Norgate data. Most thorough author is Howard Bandy, he favours shorter term trading 1-5 days or so. Llewelyn James (online) has some good intermediate ebook content, and .afl code and videos available via subscription.
Swing trading and breakout trading methods - read the Stockbee website.
AbeBooks and BookFinder are both good sites to find (used) trading books online. Drop me a PM for some other sources.