We recommend using soft poi, spinning slowly, and hitting yourself in the face with the poi a lot. Also hit yourself in the arms, the chest, the shoulders, the back, the head, and the legs. Do this every time you practice and you will get over your fear of the poi.
Often it is the things that go “wrong” that open the best ideas... but you have to be prepared to see that. Instead of being frustrated with what didn't happen, look for what did happen. If you play with this attitude, your “mistakes” will become a great source of new ideas.