I too went to Primary school with a girl in the year above me who attempted suicide at secondary school. ( Because I had been advanced in class three years/grades she actually was one year below me , and thus ‘came up’ into my form ).
‘Anne’, was a lovely natured , but very ‘fragile’ girl. She would burst into tears at the drop of hat , , but was completely incapable seeing anything but good in people . As a result she was mercilessly bullied. I remember once she was set up by a group of girls , in geography to take the fall for a prank. Honestly the teacher( who admittedly was only part time ) must have KNOWN she wasn’t capable of doing it ….but no, circumstantial evidence trumped her tears and denials ,( let alone what the teacher called ‘wicked’ attempts to implicate others ( who had, of course done it , but who lied barefaced) ; justice had to be seen to be done …..