Getting better is in reference to our inner self, emotionally and physically.. Existentially, we have no control over our environment but our ability to process and manage becomes " better".
Being self employed in a stressful career, drinking made me complacent and lazy. Now sober, I am more productive, clearer and more ambitious. I'm tackling all those things I put off with drink because they were too stressful. This is helping to reduce the anxiety of looming responsibilities that plagued my thoughts. Life isn't easier but it's easier to tackle sober. Getting sober clears the path to take clear action to make things better. But it does take our input. No magic pill or fairies granting wishes.
While drinking over the years things were definitely getting worse. So, by stopping they would have to get better. And they are.