I believe that positive affirmations really do work. The key is to write them down and not in a way that is so abstract that you cannot possibly accomplish it.
For example, I can jot down “I will receive a million dollars” in a notebook and read that everyday but never get that mola. The reason being that the affirmation lacks substance and also I am not acting on what I am reading.
But if I write on a post-it note “The more I give today, the more I will receive. Share your gifts,” read that everyday and act on it then I am increasing my chances of seeing it fulfilled. The latter is a little more specific and can be accomplished on a daily basis.
I can always share a gift, wisdom, advice, even money with those in need and through the constant conditioning of my mind I will start to see the benefits of that giving.