With the time it took you to post this you could've probably farmed enough healer essences for many, many runs.
Or just buy some of the MB. Doesn't even have to be an expensive one with full set of actions and everything. Using a cheap essence isn't nowhere near "almost a job", "perfection" or "150%". It only means you managed to find the MB in a big city or spend 5-10min bashing something that doesn't even try to fight back.