You are not a "loser." You are a caring person. You do all of these acrobatics because you love your family unconditionally. I only wish it were reciprocated. You are a strong person protecting the fragile sensitivity of someone weaker. Your mom needs her delusions, and you, because you care, feed them. That is not a bad thing. It's just the reality of being involved in the reality system of a cult. Ultimately, you should do what is best for yourself and your family.
A situation such as yours is much easier to handle given the physical distance between you. I certainly enjoy living on the other end of the country from my family.
Hang in there,
SandraC