It takes a little discipline for sure, anything that is worth getting usually does, but if you give it a chance, like doing it every day night or morning (and it's only 15 minutes or so) it can really do wonders.
Say if youre trying to give up smoking
, you might really want to give up smoking
, and you say to yourself, "I'm gonna do this this this time by golly, I am really going to do this. I'm giving up smoking FOR GOOD'!!!!