If u dont understand:
First, collide the fire and water
Collide 2 rocks and youll have a cracked rock
Collide the cracked rock then youll have a rock piece
Now make it again, then collide the pieces to make a furnace.
Then punch the tree and get a plank, then collide the plank with the furnace.
Now make a pickaxe with 1 plank and 1 rock piece. The break the iron.
Then collide the iron with the furnace, and then youll get a iron ingot, collide it with ur pickaxe, now you have a iron pickaxe!