What do you think the most destructive habit IS ?

I do agree that "worry" may be a destructive habit but not the most. In my opinion, the most destructive is "procrastination". This habit is a sign of laziness. The more you delay an action the more it is at risk of being late. If an activity or action should be done and can be done today, then do it today. Many people have this habit so most of us are not successful. The more we procrastinate, the more success goes far from us. Opportunities knock but once so lets be quick in action. Take care

I agree. Worry is one of those things that cannot change the outcome of a situation, but affects us deeply inside.