Responsibility is an attribute that we all have to do.
You can grow your personal power by being a responsible individual.
This does not mean pay your bills on time or other obligations but moreso with the spiritual value of feeling more confident.
The safe route is chosen by many but the risky route is for a person who is willing to go the extra mile in order to grow more as a person.
The first thing you can do right now to take responsibility is by always taking action to what  you say.
Most people "talk" a lot.
Always blabbing away about a project or task they have to do.
But when push comes to shove, they shy away.
So write down any promises you have made and put all your focus on completing them.
Be loyal to your promises and see them through.
Do not give up half way.
  Break away from your excuses and procrastination.
The only person that can bring change to your life is yourself.
If you are not earning enough, that's because of YOU! If you don't have the love you want, that's because of YOU! Every action is based on your thoughts and deeds.
Things happen and you will fail.
Dust your shoulders off and keep moving forwards.
Getting the job done is more important that any mistakes that will come along the way.
Like I mentioned earlier, you must be willing to put aside your ego and learn from your mistakes.
The ego is a major part of  your being and you must be willing to put it aside sometimes to grow further.