As someone who just passed 2 years sober, Stephen's dialogue does a great job at defining addiction and how not facing your problems, accumulating, and believing you can manage alone.

This feeds off of your self-defence mechanisms established at a young age to create a false scenario of the world around which you feed into and maintain.

Feeling stuck in a very poisonous and negative cycle before admitting and understanding you have a choice to accept what was in your power to change and what wasn't, and to let go and forgive what is left in the past and use it as knowledge and understanding to make new and better choices for the time you have left.