"Fear only exists if we believe in its existence"
Sometimes it is your fear that tells you that you might not succeed.
That voice in our head which tells us this is our own fear that only lives on our belief.
Try to ignore fear like something unwanted in life.Do not belief that fear even exists.Try to reach your goal and complete your task without fear in your mind.You will find any problem solved quite easily! Trust me, It is the best solution!