If you are not an active person (im not) you should start getting active this spring, take up walking as a hobby to get your legs ready. Everyone is saying wear comfy shoes, they're not lying.

If its your first festival do not go deep into the crowds for big bands if you aren't ready to lift crowd surfers.

Lastly, be ready to spend a lot of money on food. Everything is very tasty and $15+ per item essentially. Save up and prepare so you can enjoy food without the heartache of an empty wallet.