Why do you suppose Niamh was so surprised – and even disbelieving – when others mentioned her parents’ belief in her talent?
Either she never heard their sincerity or else she doubted them…and herself.
She lacked confidence and was insecure about her talents. Too much listening to the self-doubt conversation in her head.
I think Niamh suffered from anxiety and depression which leads to a lot of self doubt. Even if others say she is fine she is not able to believe them as her own subconscious states she is not ok.
Niamh was insecure and didn’t believe in herself. She seemed to believe she was a disappointment to her mother, especially and that tune was on a continuous loop in her head.
Niamh definitely had insecurities! She probably suffered, as others have commented, from anxiety and/or depression. Hopefully, this experience with Leah helped her to believe in herself and gain confidence, plus hopefully she will get some help as I know from experience with anxiety that medication can really help.