Are you setting real, achievable goals, and taking the steps to manifest them? Are you specific about the things you'd like to achieve in your life?
If not, you're not really allowing the law of attraction to work its full potential for you.
While it's not for everyone, setting monthly goals can be a powerful way to keep moving forward with your manifestations. If you achieve those monthly goals, then it's also a great way of increasing your confidence in the law of attraction, and in your ability to successfully apply it to your life.