Hi dear, here's the link to the Adobe Photoshop Tutorial Section.
Adobe Photoshop Tutorials - Tutorialized
Sen it to her via email and tell her you're just too stresed right now..
I had the same issue with PaintShopPro for quite some time with a few of my friends. When I finally told them that I will start classes and if they wanted to come, it would be one hour a week and cost 10 dollars - that stopped a few. The others actually came on time and paid - which helped me a bit.
After a few months of this, I suggested that they now knew enough to try on their own and if they still had questions, that there is probably a special forum on the distributor's site - and they did find the forums and left me alone.
When she calls, tell her you cannot help her right now because you are stressed and need some help yourself so she should check a forum out. If that does not work, then you might have to be blunt about it - some people just need longer to figure out that it's more rewarding to learn things on their own.
Good luck dear, hope it doesn't take too long for it to register.