Most times, people just don't stop addictions or habits they just no longer have the means to fund that addiction. The real growth happens when you have the means but choose to stick to your resolution and values.
A lot of people set resolutions without the adequate machinery set in place, they wouldn't just fail, they'll waste time and not even learn any lessons at all.
A teacher of mine used to say when preparation meets opportunity, luck is inevitable. Luck here can lead to success. But luck wouldn't just come when there is no ground work for it to meet. Luck and opportunity comes to those who have done the work and positioned themselves to be seen by it.
This was such a good read.
RE: Financial Resolutions: The Underlying Reasons Why You Might Fail.