1st I played on my own and did get frustrated until I found the "Walkthroughs". One of them lists resources for each part of each island
Have you
found gurana it gives you a lot of quick energy.
If all motives are not full or in the green for certain explorations
Did you build the best stove possible because then you can make bread and all kinds of more nutritious meals?
In I think Airplane jungle there is teak wood
Collect cotton and all the feathers you can for a better mattress
Good Luck