Magic Forums

I`m new into magic and black magic but I have a question.

So let`s say I have cursed some people by doing this : I took one piece of hair from every person, took finger nails from me and a piece of pork meat , a piece of my hair and a little blood of myself.

Put them together in aluminium foil and said this :

If I ever do that (ex : wear green pants) may something bad happen to those persons. Then threw away that curse mix in the garbage and then weared the green pants.

Let`s say that I changed my mind after the curse and I wanted to break it. How can I destroy this curse if I am the one who made it ?

If I did again the same mix with another piece of that pork meat and said : " May this curse never happen with the power of my will " and threw that piece away, will this make the curse no longer valid ? is the curse even valid somehow ? please answer