At the beginning of the game, after a small tutorial the Harvest Sprite provides to acquaint you with tools and stamina, he will float away and ask you to follow. Instead of immediately doing as he instructs, take the opportunity to tile as much land as you can. You have unlimited time and stamina at the moment, and you can quickly level up before starting your proper adventure.
Save Before You Chop
Save your game before mining an ore lode or chopping at a mysterious tree. Then mine the location or chop the tree. If you don't like the reward that you receive, load your save and try again until you get something better.