Both luck and success are abstracts without a definition. They each will have a different meaning for each individual. An example is Mr. Webster says luck is "success or failure apparently brought by chance rather than through one's own actions". The infamous most winning college football coach of Alabama said, "Luck is preparation meeting opportunity".
What does that mean? With the first the blackjack player with the first hand has a hole card of ten that receives an ace will consider her/himself lucky. It is a result of chance. The person who works in accounting office for years while getting their CPA is presented the opportunity to be office manager. Which of those two definitions apply to that circumstance? The second one seems to fit.
Next, what about success. If the blackjack player picks up her/his winnings and walks away, then s/he is a success. If not and loses more than her/his original stake in subsequent hands, then is not successful. Does that mean the lucky hand is worthless? Luck did have a hand in the failure. The overall experience can be deemed unlucky and unsuccessful. Applying the second definition of luck, the opportunity of success was presented with the first winning hand. If one is prepared to walk away when the stake has grown more than the original and does, then they are lucky and successful by simply not playing anymore.
Does that play into the lyrics of the infamous song by Kenny Rogers 'The Gambler' that shares;
You've got to know when to hold 'em
Know when to fold 'em
Know when to walk away
And know when to run