what all should i plan for to move off and start over?

im eighteen. theres been a lot of traumatic events happening all at once: death, betrayal, a living soap opera. im a little overwhelmed and i want to move far away and start over, have a completely new life somewhere. i work at walmart right now...i was thinking i could just transfer when i move so i wont have to worry about a job. but how much money do i need in order to live independantly? i still live at home right now, so i can save every cent i earn. i plan on leaving by june if i have the money, and if not june, then november. what all exactly should i plan for? i like to be practical and know what im doing.