I thought the members might enjoy seeing how I work with a fearful and very excitable dog. Sophia is only 8 months old and a fear biter. She came a long way during her short stay here and her mom is committed to helping her to get better. She grabs things including your skin when she gets too aroused or is scared. Training plan included lots of low threshold challenges and lots of pats, toy play and of course food!
This video is long but may give you some neat tips or things to work on. Enjoy.
https://www.youtube.com/watch?v=cTI9C82JU2Q