I'd say even with possible low carb options at the heavy metal fest you'll be buzzed all the time and your judgement impaired.

I guess we all need to learn about ourselves and what we're good at and what we're not-so-good at. If falling off the wagon and getting back on again works for you, then count yourself lucky.

You did mention something about "living life" and somehow eating low carb isn't compatible with "living life". I've gotta say that I disagree. I guess it depends on how you define "living life". Sometimes we have to redefine that from time to time. If I were a heroine addict, "living life" might include shooting up. Maybe I'd be better off rewriting that script.