Last year just a development driver, Williams has ramped up the 30-year-old Scot's programme for 2013, and earlier this month she was bestowed the honour of debuting the new FW35 during an aerodynamic test.
Revealing that Bernie Ecclestone is "massively pushing" for a woman to join the exclusively-male grid in the near future, Wolff said her next goal is to obtain an FIA super license.
That is the mandatory credential to be allowed to drive during a grand prix weekend, including holding the status as an official stand-in 'reserve' driver.
"Things are going well," Wolff, whose husband is the Mercedes shareholder and boss Toto Wolff, said.
"I think we are going step by step and, of course, the next step will be to get my super license," she is quoted by Brazil's Totalrace.
"I don't want to come out and just say 'Yes, I want to be on the grid next year'," insisted Wolff.
"My plan is to get the license, have more time in the car, help the team as much as I can and just keep going step by step."