Responses
I believe it was this one. The scenes you remembered were in it too.
http://www.mangago.zone/read-manga/i_swear_i_won_t_bother_you_again/
thank you!!
it was a typical shoujo reincarnation type story and the mc used to be obsessed w the prince etc but after she gets reincarnated or whatever she makes it her aim to get her stepsister/half sister to get with him, she starts being more nice to her sister as to not anger their father who's kind of an asshole to her.
scenes i remember are her helping her sister practice for a violin solo and at the performance the ml's clothes rip so the FL pulls him to the side and sews it up for him
please help asdbsjxnxnjxnx