If you had a creative bent unmedicated and still have that sort of interest, I am sure that you can find your style and channel again. Perhaps not that extreme and consuming, but maybe more disciplined and quality?

I definitely consider myself a creative person but when I am mentally unwell, it tends to take some very dark, extreme and self absorbed forms and I find myself living in a destructive fantasy world and not contributing to anything otherwise important for me. I tend to be very obsessive yet cannot produce anything truly high quality because I don't have the strategy, endurance and discipline - at least what meets my standards for that. Sometimes I feel a bit nostalgic for the wild extreme imagination associated with my craziest periods but not really... stability and the ability to actually live a decent life far outweighs the attraction of madness and self destruction. I've seen this in many creative people who experienced mental health challenges, there is often some grief for what's perceived as lost and then often a much higher appreciation in what's found in a calmer, stabler way of being.