You can use heated rocks and hollowed out bamboo or log to boil the water. I've even seen it boiled in a plastic bottle. Most food won't require a pot as you won't have access to grains etc needing it, so a stick and fire will suffice.
A temp shelter until you get more is easy enough to build if you know what you are looking for in nature such as a cliff, fallen trees, and leaves.
Fishing pole would be a waste of your time. Learn to build traps and let the fish swim right into them. That frees you up for building the shelter and processing water\food.