United Kingdom, Feb. 12 -- Millie Bobby Brown doesn't "have many friends".

The 'Stranger Things' actress was just 11 when she joined the Netflix series and she admitted growing up on set, where she was privately tutored has left her with a lack of social skills and struggling to relate to other people her own age, particularly because the COVID-19 pandemic left her further isolated from co-stars Finn Wolfhard, Noah Schnapp, Caleb McLaughlin, Gaten Matarazzo and Sadie Sink.

She told the new issue of Vanity Fair magazine: "I don't have many friends, because of who I am. I didn't go to school, so I don't have the best social skills when it comes to people my own age and friendships.

"I struggle with that quite a bit.

"I missed out on a f...