With her current approach to development - never! Day 13 she is already doing 1.5-2 years. And it will still be done for 0.5-1 year. Total 1 game day: 2-3 years of development. She still has 17 days to go. 17*2=34 (17*3=51). What is better, 51 or 34 years old?
In 20 years she will be an old woman and not interested in any kind of sex!
In addition, in 5-10 years the style and appearance of this game will be hopelessly outdated. And she will have to redo it again to new standards. True, for the past 2 years she has been trying to find an artist to help herself, but so far without success.