One of my biggest struggles is with that of procrastination. Some days, I would rather do anything than lock myself in my office and hit the keyboard. It's a struggle but one that must be overcome.
At times, I will bribe myself with a special treat - just five pages then you can go out and play. Other times, when a deadline is looming, I just have to force myself to sit and type until the job is complete.
This is where support and encouragement can play a big role. Find a family member or friend to push you through those times and encourage you on. Sometimes, that extra little incentive is all you need to get back to the business at hand - and doesn't make it seem like such a solitary task.