The girl who's soulmate saved her life

She found out that her soulmate controlled her hand

I woke up and I saw a note on my bedside table it said that her soulmate controls her hand from now on.
"Ugh great"
Then the hand waved at her.
"Um hi?"
She went to get changed but didn't know what to wear. Then her hand picked something.
"Oh you like this do you?"
The hand put a thumbs up to me. I decided to wear the clothes that my soulmate chose for me. I went to school. When I got home my hand went to reach for the bathroom door. That night I went to sleep with my hand waving me goodnight before sleeping itself