This is blatantly not an AIBU but a cry for parenting help. I’m struggling hugely with my 11 year old DD. She has what I can only describe as tantrums or meltdowns almost daily. Not diagnosed with anything. I think it’s likely hormones and the fact she’s 11 with the underdeveloped brain appropriate to her age. I would love your advice on how to help her find ways to cope, and ways for me to keep my cool. I’m usually able to until she starts on her younger sisters. Recommendations for parenting books would be gratefully received as well. I lost it this afternoon, ended up shouting at her and we both ended up in tears. It was horrible and I need to do better. Please help