Could be a fisherman, you could grow crops.
You get paid with goods to help you get by. You could trade for something you need with something you have.
im assuming the climate is good for growing plants since theres no technology. i choose
marijuana seeds. i can fit a lot into this bagback withoutt taking up much room. im talking thousands of seeds. all different strains.
a very sharp, strong knife for protection and general purposes.
and flint to make fire with.
i will befriend a farmer and work for him in exchange for food and a bit of his land to grow my plants on. he will get some of the best dank for letting me grow there. i will only give him weed to smoke. no seeds. this is my hustle.
i will use my piff weed to become a powerful member of the community. i will be able to get whatever i want. experiemced builders will build me a great house on my own land that i bought with the weed. i will have people working for me tending to the plants and protecting them from thieves. anyone seen stealing seeds amd growing their own weed will be hunted down and killed by goons that i will pay with my weed. eventually my house will become a big complex surrounded by fields of marijuana. giant, unscalable walls will be built around the fields.
there will be so much weed going around that the rest of the country will be pacified and leave me alone. weed will eventually become the main currency. currency that i am in complete control of the production of. i will run the whole country.