So one thing I want to go over is leaving the apple forest, or the tutorial area. It'll come naturally in-game by doing a couple of the quests but I thought I'd make this guide on leaving early and the intended way.

THE INTENDED WAY

Pretty quickly, you'll find an Alpaca named Woolfred. Talk to him -- He'll want you to stop a legend called by the name of 'The Trotter'.

Survive until night, preferably with the Boarbara (Lure a boarbara to destroy Granny's house) or with the Lowlands Tapir (Eat a life apple)

The trotter will spawn somewhere around the apple forest. Keep in mind he does teleport, and when you see him, he will chase you.

As he's chasing you, eat easy things like bushes, capybaras, or rabbits to replenish your health, and attack him when you're full. 

It shouldn't be too difficult, but if you're using one of the two mutators mentioned, it'll be completely doable. After defeating him you'll be able to play as the trotter, who is able to escape, and talking to Woolfred afterwards earns you the Alpaca.

And congratulations for surviving to day 2! :)

THE EARLY WAY (DIFFICULT)

Use the Capybara or Rabbit (Best):

Walk behind Granny's house and over to a couple rocks that make the shape of a stair.

By flipping around mid-air and dashing right as you are pointed upwards, you should be able to get up to the top on every rock!

Then I advise looking around: You might just find something that allows you to get out easily with any mutator :)