i am a newbe newbe - 3 days ago i came to see a tutorial in youtube by mistake and sat for 4 hours watching those amazing stuff that people can do on their pc machines - WOW

well i decided that i would like to give it a try but dont know anything about it and where to start. what program i need and where can i get tutorials for starters from zero.

please can someone help me

thank you

(sorry for my poor english)