ChildLine says many are dealing with fears and worries that didn’t exist 30 years ago.
In 2015 the charity says family relationships, confidence and unhappiness were the biggest issues for young people.
Bullying and self-harm also featured prominently.
“I use social media but that just makes me more depressed,” one girl said.
Overall, 35,244 of the counselling sessions held by the NSPCC-run service in 2014/15 were related to low self-esteem and unhappiness – up 9% on the year before.
I’m constantly worried about what other people are thinking of me and it’s really getting me down
There has also been a rise in the overall number of sessions the helpline runs each year, going from 23,530 in 1986/87 to 286,812 in 2014/15.
NSPCC chief executive Peter Wanless said: “It is clear from the hundreds of thousands of calls ChildLine receives that we have a nation of deeply unhappy children.
“The pressure to keep up with friends and have the perfect life online is adding to the sadness that many young people feel on a daily basis.”
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