You must.....man that just makes me flatten my ears back and want to hiss. NO ONE likes to be told what to do, especially in a tone that has a parental element to it. How would it feel if a letter like that came YOUR way with list of MUSTS on it....
1. you must lose 20 pounds
2. you must mow the grass in summer and shovel snow in winter
3. you must go back to college and finish up your degree by August 2016
4. you must get a better paying job
etc
etc
some of your musts aren't even quantifiable....one could say he HAS been CONSIDERING quitting for a long long long time now. or considered getting help. and what does BETTER ONESELF really mean? that is totally open to interpretation. your MUSTS are very passive- aggressive, you are not stating clearly what YOU want, besides the liver check....all else is vague and sketchy.
and i imagine it will go over like a lead balloon.