It is one thing to know what should be done, it is another to do it.
See it first in your mind, then become it.
For many, lack of achievement is more a consequence of fear of taking a chance and getting uncomfortable.
Look for solutions, instead of being difficult; be more thoughtful, instead of allowing anger to burn you out. Look at things from a different perspective, embrace change, look out for opportunities and you will feel much more in control.
Success is virulent. Once you get the bug then it's in you.
Like everything in life, it is not what happens to you but how you respond to it that counts.