I actually know the answer to this as also have 14 year old DS who's never been as forgetful as she is. She's actually not 13 for a couple of months but she'll soon be in year 9 and I feel like I'll be reminding her to brush her hair, clean her teeth, have a wash, use deodorant etc etc forever! She's a bright girl but also incredibly shy, even with us, and only really speaks when she has to. She'll sit for ages stuck on homework or with her laptop not working rather than ask anyone for help. I'm not sure what I can do to help, and so I don't need to keep nagging her.