I have no clue what manga you're talking about at that part with a girl who likes to do her sister's hair. No clue. XD Beauty Pop is about a very apathetic girl who is very skilled at cutting hair, and is suddenly thrown into the world of 3 boys who also love beautifying people called The Scissors Project.
Those don't sound like the same story though. A must read :) I recommend: Hana Yori Dango (very strong, brave girl protagonist. So funny too :D) Bleach (a lot of action and a lot less romance, but the main girl character is super strong.) DNAngel La Corda D'oro (a persevering character) Fruits Basket (she cries a lot sometimes(?) but she's a very confident, happy character) Gentlemen's Alliance Cross (YOU WILL LOVE THIS SERIES.) Full Moon O Sagashite (you'll love this one just as much.) Kodocha: Sana's Stage (MUST READ.
A very strong and pushy main character) Angel Diary D. Gray-Man (more action, but there's an awesome girl character) Buso Renkin (also more action... but the girl is freaking awesome) Cardcaptor Sakura (a very determined main girl character) Cardcaptor Sakura: Master of the Clow Tsubasa Chronicle Gakuen Alice (a very optimistic, determined lead) Vampire Knight Shugo Chara! Meru Puri OHSHC.
Flower in a Storm High School Debut Special A! (Best1 4 u).
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.