how to motivate someone

Hi,
I am a support worker working with people with a psychotic illness. With one of my clients, I am supposed to encourage her to go off the ward and accompany her. 10 months of going to the ward once a week and having a cup of tea with her have not succeeded in getting her any further than a bench just outside the door. She tells me that she's not scared, but everytime I ask why she doesn't want to go out she says she's not feeling well physically. She goes home to her mother's every weekend and when she's at home sometimes goes out with her family, to the shops, and occasionally goes shopping with staff on the ward, but won't go anywhere with me. Her previous support worker stopped working with her because she won't go out and that's our job, to support people out. Some weeks she'll have a conversation with me, some weeks she won't even say hello. Even when we have a conversation and she talks about things that she's interested in, she won't follow it through to actually doing anything. There must be some key to unlocking who she is as a person and rekindling her interest in life, I just don't know it. Soon the weather will start getting worse and then it will be harder to make a case for going out if it's grey or raining. Can anyone give me any ideas of how to get through to this person? It feels like when you're on a training course and they tell you about someone with an intractable problem that they had for years, and then the professionals did this and slowly or quickly the problem was solved, but I don't know what the "this" is that will help.

Thanks.

Hi, cat1! Are you allowed to meet her family? Maybe there could be something about them that makes her enjoy going out with them. Maybe you could have something with you that reminds her of her family or of her past when you're suposed to go out.

Simple, she doesn't feel comfortable with you. Could be many things. Like you're not friendly enough. Or you are making her feel threatened. Or she doesn't like your help. Or she knows you don't understand her.