There are many things that can get in the way of practice, which makes it much more difficult to acquire any skill. These barriers can be anything from Significant prepractice effort. Such as misplacing your tools, not acquiring the correct tools before practicing, or skipping setup requirements. Intermittent resource availability. Such as using borrowed equipment or relying on a resource that has limited operating hours. Environmental distractions. Such as television, ringing phones, and incoming e-mail. Emotional blocks. Such as fear, doubt, and embarrassment.