Teaching myself to play guitar?

Arite, i've had a guitar & i finally want to learn how to play. it's a rock guitar. i can't find a picture because google images won't work.i want to learn how to play without the amp then gradually learn how to play with the amp. i plan on taking cles after my midterms but i am trying to teach myself because i have break & it'd be cool if i taught myself because i think i have the ability to. i can sing. i know how to the play piano, harmonian[piano like instrument] a precorder/flute, if that helps. so if you have taught yourself or know how to play guitar it'd be greatly appreciated. tips would help or anything, steps or whatever! i have a dvd to help my play because i got the guitar in this nice kit for christmas a while back. & sorry for these grammatical incorrections . arite, anything that can help greatly appreciated (: