You probably already know this, but I'll restate it for the purpose of clarification: The Law of Attraction ensures that what you think about, you bring about.
It is this Law that aligns your thoughts with the infinite possibilities of the Universe, in order that the things you think about you will experience in your life.
Your thoughts become actualized as easily as your breath turns to steam on a mirror.
You can achieve success in whatever manner you deem desirable, conditional only to how your own thoughts and mental imagery conform to your idea of success.
If at the moment you see yourself as a failure, all you have to do is get a new mental image of yourself, one that would indicate you are a success - no matter how you would define that success as being.
Your life, right now, is the perfect actualization of all of your thoughts and mental imagery to date.
Therefore, in order to change your life, you must change your habitual thinking.
When you are trying to do this, if you run into apparent barriers, don't look upon them as insurmountable...they are not. Every barrier represents a limiting belief that you have, for whatever reason, accepted.
And any belief can be unearthed and changed if you are ready to put in the effort necessary. Do not cower before limiting beliefs, telling yourself you can't help thinking a certain way; it's how you were taught to think by your parents (for example).
Your problem is not that you accepted those beliefs in the past, it's that you are still living in accordance with those beliefs in the present.
If you want success now, in whatever field of endeavor you have chosen, then it's up to you to examine whatever beliefs have been holding you back, and begin right now to change them.
You will do this by acknowledging that you, and you alone, are responsible for the way you have been thinking and inadvertently misusing the Law of Attraction to bring unwanted conditions or failures into your life.
Rather than feel victimized by this acknowledgment, you will find that it empowers you.
Take hold of that new feeling, and begin to form, in your mind, the mental images of the type of success you want.
Create affirmations, just short, present-tense phrases, that state clearly that you arenowsuccessful and happier than you ever imagined you could be.
After a short while, the old beliefs will be completely dissolved, and the Law of Attraction will begin aligning your new thoughts and beliefs with the infinite possibilities for success that the Universe can bring you.