I worked on my voice for Sweet Dreams, but only to match my speaking voice to Patsy's actual singing voice. That was my way into that character.
Don't accept that you are in crisis just because everyone says you are.
At one point I had a stretch where it was working on 'In Treatment,' then 'True Blood,' then 'Durham County,' then 'True Blood,' then 'In Treatment' again. If I didn't have that little dose of 'True Blood' in the middle, I might have lost my mind.