No, believe me it's not going to work even you have to delete all of your gambling account. There will be the time that your hands will be itchy and you will crave for another time to have sometime to win in gambling. There are so many methods that has been told by many gamblers here but the thing is if you want to quit gambling for good you should start with yourself about focusing on quitting and you've got to stay away in gambling sites no matter what.
Deleting accounts? That's not really possible in a lot of gambling sites. Also, what is stopping you from creating a new account anyway? It's not like gambling accounts cost money, so it will deter you from creating a new one and just play again.