Certainly, the basic needs in gambling is the analysis. If thou must do an analysis, your bet would not be worthy at all.
Only sportsbetting however you dont need to analyze everything that is not related to sportsbetting. With the right analysis people can guess which team that will have the advantage over the other therefore this will increase the chance of winning although Im sure that alot of people lose as well after predicting it
It's also applicable with poker and whether you will analyze or not it depends on how you are going to be that lucky on that day. Because luck and analysis is always a tandem in gambling or trading. And I don't think by simply gambling alone can give you an easy way to make profit / winning in gambling, just be an investor and see your bitcoins work for you.