Do you have regular meetings with her 1:1 to work through the steps? Whereabouts is she with this?
It might be that she just isn't ready to listen...I wasn't at first either. There's little you can do if she isn't taking on what you are offering. I've not been sponsoring long, but most people who have asked me have been desperate to want to change. They've needed a bit of chivvying to get past step 4, but have been enthusiastic about the rest of the process.
I've been approached a couple of times by people who want to change but who haven't wanted to put in the work. I leave it up to them...and back off.