There are certain substances I've found to be helpful for managing intense stress in-lieu of alcohol. If interested, I'd suggest experimenting with each and seeing if any work (or work in combination) for you, as they're all significantly less harmful than alcohol.

1. Agmatine

bonus, reduces alcohol cravings:

https://www.researchgate.net/publication/288735721_Effect_of...

2. L-theanine

3. Taurine

4. Rhodiola rosacea

5. Tulsi