United Kingdom, May 9 -- Katherine Heigl feels a lot of "anxiety" as a parent of two teenagers.

The 46-year-old actress has daughters Naleigh, 15, and Adalaide, 13, as well as eight-year-old Joshua with her husband Josh Kelley and doesn't feel as "in control" as she once did with her eldest two.

She told PEOPLE: "It really increases your anxiety and your fear as a parent.

"You are not as in control as you were when they were little, where you had all the power of keeping them safe and guiding choices. They are their own little people now and they really have their own minds and they're going through it. It's a tumultuous time.

"Now that Adelaide's 13, they're both into makeup, they're both into this TikTok dance and that TikTok dance....