Having had the same experience I'm telling you it will come back. I've always been creative and when I was drinking I "lost" that ability. Really being the only thing that gave me joy. Most of the last 9 months being sober it would come and go, often in surges and then nothing, no inspiration at all. Now it's pretty constant. It takes time for the brain to heal. Give it some time. Writers have writer's block and they don't destroy themselves. Each time you drink you set yourself back to square one and repeat the pattern. Get outside in touch with nature, get your hands dirty, plant some flowers, that's creative and will help open you up for more. Good luck!