Success in gambling isn't a thing since it has different definitions for different people.
For example success in gambling for me is when i get a correct score in a football match or find that my analysis was correct and i have predicted the right outcome .
Success for others is having as much money as possible and for others is not having every bet wrong .
So finding success totally depends on your approach to things .
maybe the success you mean is luck because you won the match by guessing the score in a soccer match, I don't think that means success in gambling. a person who is successful in gambling can manage the money generated from playing gambling and can get an abundant profit from the results of the gambling