Confidence

"Whether you think you can or whether you think you can't, you're right." ~ Henry Ford   

Remember the Little Engine That Could?

This is so very true.  A positive attitude can enable you to begin any task with confidence, knowing that you will succeed with that task.  If, however, you have decided that it is too difficult a task for you to accomplish, you are certainly correct!

Just know that, should you attempt a difficult task and fail, you can just try again.  And try again and again if necessary.  Eventually you will get it right if you perservere and know that you CAN succeed.