If I set up a Living Trust, can I be my own trustee?

Yes.  In fact, most people who create Living Trusts act as their own trustee – never relinquishing any control of their assets until their incapacity or death.  Married persons often serve as co-trustees, so upon the incapacity or death of one spouse, the other takes over as the sole trustee.  Subsequently, one or more successor trustees undertake the responsibilities of trustee.