I feel like i am a coward. how to get rid of that.

Work around it: Rather than trying to get rid of it. You may naturally be cautious, and there is nothing wrong with that. Fools rush into the place angels fear to tread. What is your profession? Work hard to excel in that, being the best you can be is good feeling and will improve your self confidence.

Why?: To deal with feelings of being "a coward, " you need to explore the reasons for this. Your assessment may not be accurate; could be too harsh. Or, perhaps you have behaved in a way not in alignment with your values. Find a person you trust to hear you with compassion, & to see you for who you truly are. Share from your heart; realign with courage. Mirror this in your acts -- step by step by step.