So, the conclusion here is “there are no long-term winning strategies out there”. No matter “common” or “individual”. But with a certain approach, good mathematical skills plus some experience, bankroll availability, discipline, as well as reasonable RoR acceptance and awareness of your own risks could be considered as a reasonable background and may evolve into a kind of hobby later. That being said, “Researching” might be a way to entertain yourself , but never the method of long-term guaranteed income.
It takes so much time reading everything... So to sum things up, what yoi want to say is that there's no long term strategies to win...
First, gambling itself is not really good for long term. It's just for entertainment... Different strategies may work when you're playing but it does not guarantee winning at all time. Athough you put much strategy on playing, luck was also always there. Meaning that strategies are not enough for you to win, good analytical skill and a bit of luck is also needed.
PS. You should've also summarized your content by making it concise 'cause not everyone will give time reading everything.