If I was to start over...
1. Use plastic hook to collect materials
2. Make Building Hammer
3. Expand raft
4. Make water purifier
5. Make cup
6. Make fishing rod
7. Make grill
8. Make spear
9. Make a research table
10. Research as much as possible
2. Best tool for survival
Water purifiers are necessary for thirst and planting crops.
3. My Raft
Best feature: Stairs to get to islands. They have good stuff.