My Gambling System of don'ts

Dear Mark, What are your thoughts on systems? James L.
My first response would be, NO, I do not believe in systems. But that is not quite true when it comes to my own modus operandi. I believe in the system of "don'ts."
Don't bet over your head but only with what you can afford to lose. Don¹t play with scared money.
Don't borrow money from friends to finance your gambling or try to recoup your losses.
Don't press your bets if you are on a losing streak.
Don't be superstitious. Knowledge is the key, not luck.
Don't waste your time on games or wagers where the casino has a house advantage of more than 2%.
Don't play any game or make any bet you know little about. Learn it first.
Don't drink excessively and gamble at the same time.
Don't be afraid to ask questions. Whose money is it? YOURS.
Don't be greedy. Be satisfied with a small win.
And finally, don't mismanage your money.
A far greater percentage of casino profits are derived from players' who lack money management skills than from the mathematical edge the casino holds over the player.