Instructions
Register your Sim at City Hall with the profession of your choice. You must have at least one level in the skill associated with the career for which you want to register. To gain your first level, have your Sim take a class, read a book or practice using the skill with the items associated with the skill.
Click on your Sim's computer to write novels. It will take several hours to a few days for your Sim to write a novel, depending on his writing level and the genre of novel he is writing. As he writes the novel, he will receive small payments from his publisher. When the book is finished, your Sim will automatically begin receiving royalty checks every week for six weeks. Complete additional novels to continue receiving royalty checks.
Purchase an art easel and click on it to have your Sim paint pictures. You can select between a small, a medium or a large painting. Larger paintings take longer to paint, but sell for more money. When the painting is complete, click on the easel and select "Sell Painting" to receive payment.
Purchase the sculpting station and click on it to begin sculpting a statue. Your Sim will automatically begin working on a particular statue; once your Sim has created a statue, you can recreate it whenever you wish by selecting it from the sculpting menu. To sell the statue, click on it when your Sim is done sculpting it.
Purchase the workbench to begin inventing. Click on the workbench and use the "Dabble" option to raise your Sim's level enough for him to use the "Invent" option; additionally, your Sim can also take a class at the Science Facility. Collect scrap materials from scrap heaps in town and then click on the workbench to create inventions. When your Sim is finished with an invention, click on it to sell it for money.
Click on a body of water in any community lot to fish. (Your Sim will automatically have a fishing pole available.) Open your Sim's inventory to sell any fish you catch, or visit the grocery store in town to sell your fish.
Purchase seeds at the grocery store or harvest them from the community garden to begin the gardening career. Open Build Mode and select your family inventory to place seeds on your home lot. Return to Live Mode and click on the seeds to have your Sim plant them. Click on the plants every day to keep them watered. You can also fertilize the plants using food items. When the crops have grown, click on a plant to harvest it. Open your Sim's inventory or visit the grocery store to sell the produce you harvest.