It's an error to focus too much on the substance (illegal drugs) when alcohol, legal drugs, food and many other forms of abuse and dependency can lead to similar or worse outcomes.
The phrase "mental health" makes light of the realities of addiction.
From what I understand, an addict can't mental health their way into being someone who isn't an addict.
If that is the case, after they have become an addict, they can only mental health themselves into being someone who refuses to indulge in their addiction.
If they refuse to indulge long enough, the craving loses its power over their reasoning, but they still have the capacity to be immediately back to where they started if they indulge a single time.
In my opinion, the best thing is to never use a drug you don't have to use.
The next best thing is to use them extremely sparingly or for a specific purpose.
If you go past this point, you begin to run the risk of becoming addicted.
Tackle the issue at the root: mental health.
It's an error to focus too much on the substance (illegal drugs) when alcohol, legal drugs, food and many other forms of abuse and dependency can lead to similar or worse outcomes.