Did you know it takes at least three weeks for a new habit to become firmly established? When you build a new habit you are quite literally building new grooves and neural pathways in your brain. You strengthen these pathways the more you perform the habit. Remember that this is the case for both good and bad habits.
This quote pretty much sums it all up:
I am your constant companion. I am your greatest helper or heaviest burden. I will push you onward or drag you down to failure. I am completely at your command. Half of the things you do you might as well turn over to me and I will do them – quickly and correctly. I am easily managed – you must be firm with me. Show me exactly how you want something done and after a few lessons, I will do it automatically. I am the servant of great people, and alas, of all failures as well. Those who are great, I have made great. Those who are failures, I have made failures. I am not a machine though I work with the precision of a machine plus the intelligence of a person. You may run me for profit or run me for ruin – it makes no difference to me. Take me, train me, be firm with me, and I will place the world at your feet. Be easy with me and I will destroy you.
Who am I?
I am Habit.
– Anonymous