Learning Hack codes ?

I made websites before, i know a bit of html. But i know that is not needed in hack making. What should i learn ?

C#, c++ , VB ?

Is this the right place im going to ?

How long would that take me to learn ?

And, do yous have any good tutorial websites ?

When i will done learning these and start making hacks then how can i check if the hack is undetected ?

Im going to study ICT, will these languages be helpful in my future ?

So again " C#, c++ , VB "

Dont post this here this is for hacks only post it in Coding section