I am a big believer in going deep into whatever loss I experience. There is usually some surprising stuff to be found. After my son died of an overdose, I lost any drive to create art. Mind you, I made my meager living from it. It was a huge part of my identity, from my earliest memories. I found out this is a pretty common experience within the grief of losing a child. In fact it was the mother of one of my art students that died who warned me it may happen (it already had). I chose to really explore why and how I could not connect. Granted, this may be somewhat different because no substance was involved but I still think the process may be relevant. What I found was that there were other ways I was creating (lots of writing, lots of dream-work, lots of time spacing out and letting my self recalibrate). I developed a lot of patience and acceptance in this process and that spilled over into other areas of my life. Patience and acceptance are very good traits to cultivate in recovery.
I would try to refocus from "what I have lost" to "what I am learning about myself and my life
right now". Because the former feels desperately sad and disorienting--a true loss--whereas the latter reframes it as something that is demanding all your creativity and attention for
the time being only. let the future unfold as you strengthen yourself emotionally and psychologically--this can only be good for your art form.