It would read "I promise that when it is my birthday I will remember that dd2 let me help her with her craft things and let me play with her dolls and even said I could keep one of the dolls she got two of, even though mam said I should buy it off her with my pocket money, dd2 said no, she didn't want any money for it.
I will remember that I promised to share my presents with her and let her help me do any craft projects I get.
I will not break my promise."
Lovely dd2 shares every birthday present she gets and is so gracious about it, she even lets dd1 open the boxes. When it is dd1's birthday everything is hers and hers alone and dd2 is not allowed to touch anything, under any circumstances. I remind dd2 of this every year and every year she says the same thing "It's okay, I like to share with dd1, so she doesn't get sad because it's not her birthday. I won't mind when she doesn't share her presents because she still invites me to her party so I still have a fun day"
Dd1 thinks this is unnecessary. She will remember and she will share but she won't share her best present, only the other ones 