When you overcome a major challenge make sure to take the opportunity to celebrate. A workaholic can often move past major accomplishments, simply pushing forward and onto the next task.
They will make excuses - there is no time to pause for fun or something more important is happening now.
However, a little creativity shows that celebration and productivity are not mutually exclusive. A celebration should be a conversation (in any setting you can imagine) with other people invested in the outcome - where you explore the exciting opportunities that have been revealed.