My gambling strategy in Hocky games is that i pick couple of top teams or weaker one and bet on the top teams to win and on the weaker one to lose and i chose NHL because odds in those games always high and if lost the bet i bet on the same team for the next game with doubling the amount sometimes jusrtthe same amount depends on their situation and opponent's.
I honestly do not even have a strategy because of the fact its not needed at all, with gambling its based on luck and not on a strategy in my eyes.
True that for casino games, not so for sportsbetting and poker.
Casino games totally depend on your luck and not strategy. However for sports betting your analysis and research on teams and players can often prove useful and give you the edge.
However I must admit that many games are fixed and used to manipulate gamblers into losing money. All you can do about them is to keep stron nerves and have faith in your predictions.