I know of a lady who uses it to pay someone to do her ironing, something she finds difficult to do.
She also gets her hair washed at the hairdressers, as she finds great difficulty washing her hair.
The young man I know, gets the mobility component, as he is unable to cope with public transport, due to his autism, so runs an automatic car to allow him to get to work.
I think there are many misconceptions about PIP.
My BIL, was on dyalisis, had heart failure, cancer and diabetes
He couldn't walk fifty yards, but still thought he wouldn't qualify for PIP
In the end he agreed to apply, after it took my husband and SIL to push him upstairs to the loo and he realised he needed a stair lift.
He died the day his award letter came in. ?
He should have applied years ago, but thought it was only for ' disabled people', not people like him.
Sorry, I digress.
The OP should apply for ESA, if she is unable to work.