You need to make a major change in your life. Do you make it all at once, cold turkey style, or incrementally?
By all means incrementally, having an ‘all or nothing’ attitude towards changing something would only set yourself up for failure. If you take things one gradual step at a time, you can analyse your progress, find out your weak points and know what exactly to work on next. Also, it would give you the strength and courage to take the next step of your journey to excellence.