Obviously meditation is not a static thing – some days I'm able to maintain focus, other days I'm not. My longest meditation in one sitting was more than 8 hour

Obviously meditation is not a static thing – some days I'm able to maintain focus, other days I'm not. My longest meditation in one sitting was more than 8 hours, but I aim at 2 × 30 minutes a day (or 45 minutes in a single sitting if I'm unable to do 2 sittings for some reason). My general equanimity has definitely increased throughout the years, but I can't say meditation has decreased my procrastination (it has increased my general acceptance of procrastination, though).