HELLO! Most of this is okay! Main thing is we'd say that things like drugs/alcohol feel more like physical effects than mental effects so we'd probably leave things like that out.

Also we'd say he can probably cast it 1-2 times per day. If he achieves his first goal, he's allowed to recast for a second time that day for a different one. Two goals a day!! And then it can reset once the day is over or something.

Let me know if that works or if you have other idears!!