Our minds can harbor fear for years...intimidate us from trying harder at whatever task we wish to accomplish... It is very confusing, but I will try to give you some examples...
If you have failed at something, you might be afraid to try again. Or, you try, but that scared feeling is still in your mind. Take for example, if you hurt a significant other's feelings during love, you may be afraid to love another new person, because you fear you will hurt that person in some way, similar to the first....
One of my lady friends got cancer; and I still wanted to have sex... Later on after she died, I could not perform, thinking it was because of guilt with my last lover, her, the one who got cancer...
The mind can harbor ill will; you have to meditate and pray for it to go away. Don't feel intimidated over anything. Give life your best shot, and try to follow your inner heart and soul, and not regret anything you have done unless it was very bad; then, pray for forgiveness....