My first year going to warped tour, help !?

You can bring anything you want. A cell phone may be most important in case of emergencies though. You can just expect to have a good time and probably meet new people. I would choose to wear anything that you would like to wear, maybe a band shirt of one of the bands that will be performing. Tickets are 40$ at the door, or you can buy a ticket off vanswarpedtour.com for $43.27. It's not too certain if all the bands hang around there because they are touring other places as well, but there is always a chance to meet some of the band members. The time you should get there just depends on your location. The pits can get a bit wild at times, but certainly not scary. But I wouldn't recommend jumping into a pit. All I can say is, have fun and good luck with everything :)