???? Grind for weapon crafting??? This is the 3rd step of the introduction and you just have to pick up the resources on the ground around you, achievable before the 10th minute of play.
Is the MC low? You can craft armor in the same place as the weapons and you already have resources to pick up on the ground in the starting area. You can also collect food everywhere to heal yourself and you don't even have to fight for resources because you can find dead people with a backpack that you can rummage through and have resources in.
Where is the grind and hours to do this? Also, on the 2nd day in the game, you can already get sucked.