While it may not seem obvious at a first glance, you actually have a wide variety of movement options when playing Getting Over It. The hammer can actually be one of your best friends as long as you master what it holds. For example:

• Hook: This is a basic maneuver. Just swing your hammer around to latch onto an object. This is useful for hooking onto certain objects if they're in reach, or just getting from one place to the next.
  
• Launch: The launch is when your hammer is on the ground, right under you, and pushing off the ground to gain vertical distance. This is a great tool for if you're just barely trying to hook onto that one block you can't reach while grounded.
  
• Swing: Swinging is creating velocity by moving yourself back and forth as if you were on a swing. This kind of movement is good for when you need to make a large jump and you have something to hold onto above.
  
• Pull: Similar to the launch and the swing, except you're pulling yourself upward to gain immense vertical velocity.

An extra tip to beating Getting Over It is to turn on Use trackpad tuning in the options menu. While it may not seem like it does much, it significantly reduces the amount of mouse acceleration that the game has (yes, it does) and will give you much more control over your hammer.