The correct answer would be the third option.
When preparing to quit a substance dependency the best things you can do to help you would be to remove negative reminders and temptations, so get rid of anything you own that may influence you to reuse, so for example drug paraphernalia or empty packets of pills or empty bottles of alcohol, anything associated with the substance. Then find yourself a good support system, this could be a support group or friends and family that you trust and can rely on.
