Just go for the basic knowledge on how casinos works and gambling in a whole, so that you be able to manage risks, and minimize losses because is something that's inevitable in gambling, so the only you can do is only reduced it .
Gambling is not like investing or business, we should not try to find any method or strategy that can bring us victory. They don't exist, so trying to figure out strategies to win at gambling only puts us at a higher risk of gambling addiction, nothing more, nothing less.
Casinos are businesses and they are in business and they will never let themselves lose so gambling is all about luck, there is no strategy here. You are right, when it comes to gambling, what we should care and focus on is risk management, emotional management to avoid big losses as well as addiction. Gambling is for entertainment only, not a place to make money or get rich.