Sorry for the difficult times!
Reframing the situation may help. Try to consider yourself 'choosing' rather being 'forced' to be alcohol free. And therefore, 'choosing' to have improved heath, relationships, etc.
Also, you may want to try to visualize the ideal result of this process and/or craft a mission / goal statement. (i.e. "I am enjoying and embracing the many benefits of choosing to be alcohol free, including X, Y, and Z. I am committed to continuing to choose to be alcohol free so I can continue to reap these, and many other, rewards").
Long term goals can make it easier to ride out the short term challenges.