Write a daily list of what you want to accomplish and allocate time for each goal. Eventually you'll better realize how long each task should take and what is attainable given your time. One of the most important things I've learned in my career is identifying what not to do. You'll become better at prioritization and at identifying other ways to accomplish the intent of the tasks that don't get accomplished that day. If you don't get around to goal after a significant amount of time... it wasn't important.