Nobody is more responsible for where you are now than you. You have the power inside of you to become the success that you want to be! Start becoming detailed and clear about the things that you really want out of life.
What is holding you back? Is it failure? Some of the biggest and most successful people in the world are driven by their failures from their pasts. Don't think of failure as an obstacle to your life, but instead think of failure as one of your biggest allies, for without failure, there is no success.
Condition yourself for success. Find people who have done things similar to what you want to do, and model your own life after theirs. All of the knowledge and wisdom is out there for you to use, but you have to use it to become successful by actually putting forth great effort, and taking action.