Both Grylls and Mears do have-a-go weekends 🙂
Think it’s the current Trail with a writeup on the Grylls one, mostly involved ex-army types shouting “what would Bear Do ! “
Might put you off a bit 🙂
Cheap tent
sleeping bag
foam mat (cheap)
small cooker, gas or meths or solid tablets all can be had cheap
Spoon
Tin mug or mess tin, or a camping kettle
Pot noodles or instant pasta just add water food
Don’t go to far from car or home, if tent burns down, gets blown away, or leaks in rain and you hate it, walk or drive home.
Or even better find a nice little campsite nearby, and use that to practice in with a few safe nights, then go wild.