An apology has three basic ingredients:
1) Owning up to it
2) Being sincere
3) Not revealing that you are a colony of rats operating a man-suit
"I warned you assholes that this gig was too good to last."
You unfortunately failed to meet any of these criteria. To see an example of how it's done, you can look at Chris Pratt's recent apology. He said a pretty stupid thing about how Hollywood doesn't represent blue-collar workers, then, realizing it was actually a pretty stupid thing to say, tweeted "That was actually a pretty stupid thing to say." It's simple and minimalist, and people loved him for it. In fact, people might like him even more now, because it's so rare to see a public figure apologize so succinctly and sincerely. And he did it in a single, swift utterance. He didn't have to apologize for the apology, because he apologized in the first apology. Yes, it's true, it helps that he's more handsome and likable than you, but it is also massively important that he decided not to be a rampaging dicknoceros in his mea culpa.