In this challenge, you can either create her, or download her from exchange (I’ll link her, but google her).

With her, you must then have her master two skills, spellcasting and Writing, to level 10, all while earning enough a gross of 75,000 simoleons in her household account.

To make it challenging, you CANNOT marry a rich Sim or earn money through very simple and filtjy/cheatish ways that on your eyes seem filtjy (looking at you genie LTW). Make her marry a homeless peasant (0 in his pocket) or create a spouse yourself. You must all of this within her first lifetime (without reincarnating her if she dies; and preferably if you dont give her loser and inlucky traits)

To make it seem more immersive, you can finish the challenge by having her write last novel (that fits with the lore) and, if you have the spell book from the Store, purchase it.