I have a mentor and while I appreciate all that he has done for me when I was first learning the ropes now I feel like he purposely keeps me under his thumb. At every opportunity, he takes credit for my wins. I feel I am ready to step out from under his shadow and stand on my own two feet. I don't want to burn bridges but I also want to show my worth. What can I do? And I feel he has taught all that I can learn from him. Maybe it’s time for a new mentor?