Gather all 16 colours of wool.

Construct a Dispenser.

Acquire diamonds with your iron tools.

Mine 1,728 Cobblestone and place it in a chest.

Wear a full suit of Iron armour.

Stop starvation using Rotten Flesh.

Turn wheat into bread.

Smelt wood trunks using charcoal to make more charcoal.

Smelt an iron ingot.

Breed two cows with wheat.

Craft and place a sign.

Build some bookshelves to improve your enchantment table.

Brew a potion.