Quoted By:
Tell us where you're going. Things are going to be different if you're in the southern or northern hemisphere, desert or temperate rainforest, etc.
Shops you can buy gear from:
Secondhand stores (americans call them thrift stores)
Military surplus
things you need:
backpack, big enough to fit all you need
sleeping bag. doesn't have to be good since I assume it's summer where you are
Maybe a hoodie or waterproof jacket if it gets cold or rains.
A good knife. Moras are a meme but they're cheap as fuck, or get a scondhand one.
Tarp.
Groundsheet.
Food. I like noodles (americans call them ramen), canned foods, granola bars, etc.
Sandals or go barefoot if you don't want to get city shoes dirty.
Some spare string.
Water with a bottle.
A pan for cooking food.
you'll be fine mate