Only sometimes it is better to be quiet,I doubt if you are capable of doing what you are saying you might do.Really,just launch the Dos we already have your mobile number and that make me rate you very low as a person who knows security because how can you threaten people and you have already displayed your mobile number.
Now you need to apologize to them and to the forum members or we should start displaying the real you? ,you may say you were just kidding,How can we be sure?Are the initials for your full name not A.Y?You apologise not we dig deeper.
Now if someone else do what you said you might do,do you agree that now you are the prime suspect bearing in mind there are a lot of free tools for that?
Anyone can do Dos but few know how to cover the track and you are not among the few.
If you can walk the talk then you have the green light.You can choose your actions but you can not choose the consequences of your action.
I strongly believe you are learning and possibly you are on introduction to everything ,this is a very respectful forum with people who are intelligent beyond your imagination.