I came here today to ask for help.I would like to learn how to DDos or Dos

1.I would like how to no how to make a ddos program or a dos one
2.I would like to no a free ddos or a dos program that really works
3.I would also would like if any body could help me with this and teach me how its done.Not just give me a link and say figure it out by yourself.

I would really like for anybody to answer back as fast as possible and help me.