This is a great place to start. Practice every day for 40 days straight. This will break any negative habits that block you from the expansion possible through the practice.
At this point, add 30 more days and practice every day for 120 days straight. This will confirm the new habit of consciousness created by the mantra. The positive benefits of the mantra get integrated permanently into your psyche.
Once you finished 40 days, continue for 90 days straight. This will establish a new habit in your conscious and subconscious minds based on the effect of this mantra. It will change you in a very deep way.
Now, if mastery is your plan, continue every day for 1000 days straight. This will allow you to master the new habit of consciousness that this mantra has promised. No matter what the challenge, you can call on this new habit to serve you.