I highly recommend trying mushrooms or acid for someone in a good place mentally who wants to improve themselves. Obviously one should do their own research for responsible consumption, and find a good set and setting.
I went from drinking a consistent 1-2 alcoholic drinks a day (very rarely getting drunk tho, just loved homebrewing and craft beer), being nearly obese, with little cardiovascular/muscular fitness to being in a much better place. I now exercise regularly, have a resting heart rate of 54 bpm, lost 30 pounds, meditate every day, eat much more healthfully, rarely consume alcohol, and I am more patient and listen to my partner better.
The increased neuroplasticity caused by physcadelics when combined with a desire to improve habits is a very powerful combination.
There is also a legal, mushroom based therapy for anxiety and depression that has shown great results, available in Oregon.
I really do believe society is much too welcoming of alcohol consumption, and much too resistant to physcadelics. We got this one so wrong.