Russell was called upon by Williams for the start of this season after winning the Formula 2 title in 2018. In 12 races so far this season, Russell is yet to score a point, but that is largely down to Williams' car rather than the driver himself.
However, for the large part of the season, Russell has outperformed his Polish team-mate, who has much more experience than the British 21-year-old driver.
"The first season was useful from various angles," Russell said in an interview with Speedweek. "I did a good job on some weekends, less on others. But even if it did not go well, I could always learn a lot.
"If someone would ask me what I would change, I could drive the first part of the World Championship again, so I would say nothing. Because in life you need experiences from difficult situations in order to develop further."