I would say he needs first to cut down the booze, do a quick blood work to check, then from it why not adding anavar.
So you’re doing coke only for hamstrings but no other muscles? Haha just kidding
Yeah bro it’s totally against your training, first of all it’s very catabolic and also increase your heart beat (so not great during training can be directly dangerous for your heart)…
On top of that, drugs (and alcohol) are damaging your liver AND ALSO your pancreas, so it will be counterproductive as your body will be not able to process and synthesis all nutrients…
Deffo not judging, I’ve been young and talk from experience, and if I could help someone not making same mistakes years ago, I will happy