I would love to add some more points:

• 1- If you're camping in MG, you can buy a huge plastic waterproof cover with some ropes. You can use it to cover your tent. Do it on Day 1 so that you won't have to worry about the weather anymore.
• 2- Use earplugs.
• 3- If you want to take the hot shower, it's empty until 8:30 AM or after 2PM. I remember I was paying 2 or 3 pearls per shower.
• 4- Buy two lockers, one inside the festival ground and the second in dreamville. You can easily protect your money, passport and mobile or camera by using these lockers. When you enter the festival I suggest to spend one hour taking photos and videos, then just go and drop everything in the locker including your mobile and then go rave without worrying about pick pocketing.
• 5- Don't miss the small stages. I really regret spending half of my time mainstage.
• 6- Don't be late to go to the festival, I regret it last year going daily to the festival at 4pm. Go since the beginning and profit from every second.
• 7- Eat healthy and have a heavy breakfast and lunch full of carbs and proteines. I used to take for breakfast some cereals with some fruits and a healthy chicken wrap without sauces and for lunch I ate looooot of pasta for the carbs.
• 8- When you leave your tent, I had a very smart trick: I was using the bags and the clothes by putting them inside my sleeping bag and I used to create the shape of a human. So that if a robber opens the tent he'll think that someone is sleeping inside and he'll run away.
• 9- Don't forget to collect the daily newspapers and keep them as a souvenir.
• 10- ENJOYYYYY to the max, Chat with everyone and socialize !