Like everyone else so far my answer is "depends"
Habits, probably (some easier then others)
Appearance, up to a point, I still have to feel comfortable looking like that
Hobbies, doubtfull, I'll cut down on some or might try some new ones though
Job, no problem, assuming the job is attainable and doable
Location, yes within reason
Social Circle, nope, my friends are my friends for a reason, though I might hang out with them less
Political/Religious Views, these things you can not change, at best you can fake them
Habits, probably (some easier then others)
Appearance, up to a point, I still have to feel comfortable looking like that
Hobbies, doubtfull, I'll cut down on some or might try some new ones though
Job, no problem, assuming the job is attainable and doable
Location, yes within reason
Social Circle, nope, my friends are my friends for a reason, though I might hang out with them less
Political/Religious Views, these things you can not change, at best you can fake them