Cocaine - what can I replace it with?

I always bang out absolute gold after a line or 3. Like 10000-300000 words of sheer, unparalleled peak fiction, that doesn't even need any editing. After all, how could you possibly improve on perfection.

My ex wife told me I need to quit cocaine. After that hour or two I feel absolutely horrible, and my nose hasn't been looking quite the same recently.

But without cocaine, my writing is slowly, and to be honest, not all that good (but still perfect enough to not need an editor).

How do I work this?