Your character cannot regain Mana without performing what would qualify as an Act of Hubris against Falling Wisdom, if she had Wisdom. Oblations she performs at a Hallow or as part of a Legacy must include such an act; spells like Channel Mana and other ordinary ways to regain Mana fail unless she’s performed one within the same scene. Performing blood sacrifice for Mana always refills her Mana pool completely.
Resolution: End the Abyssal curse.
Beat: Suffer harm or significant setbacks due to running out of Mana.