My strategy was simple. Both were vampires so they never slept. The introvert did all the money making, because I suck at the acting and music.
One of the vampires researched just enough to get the plasma packs which was shared between both so hunger was dealt with that way. When they needed to recover hygiene, social, or fun, they showered, chatted, or played a computer game.
Introvert painted using the digital tablet, posted on Plopsy, mailed out what was sold, painted, posted, mailed, rinse and repeat. They lived in a micro tiny house and the extrovert worked in Entertainment to get him out of the house for awhile most days. Extrovert mastered Paino, Guitar, Violin, Comedy, and Singing; then I stopped paying attention to him. Introvert would create 6-7 paintings in queue, then post them on Plopsy. During the time it took to create the 6-7 paintings, she would have between four and eight items sell, so she would mail them all off. Then it was back to the tablet for another round. I was really surprised at how well Plopsy worked for this. By the end, her masterpieces were selling for ~§25,000 each.
On the last Saturday at about noon, introvert stopped painting and started pulling items off of Plopsy and selling through inventory so that when time was up, all paintings and photos had been sold, one way or another. They actually stopped about 5am Sunday morning because I was ready to be done.