Its not bad to continue after a win but you should still limit yourself because too much is not good anymore  and every people has thier own deffintion of success  . some thinks they are succesful after they won on  onen session and some only define success when they already became rich on gambling  . and to answer the op's question , i can say that gambling is both straetgy and luck   . there are games that is luck based while others are purely based on strategy  .