I don't see a problem in that because I'm exactly the same. You don't see any posts from me about the world of finance - because I just can't wrap my head around it :)

Unless you want to write about things that don't interest you, I would think you'll be fine.

I don't want this group to be like that. A writing exercise will be on your current project, rather than me dictating what you should write about.

I suppose I'm hoping to walk people through their writing to develop an idea into a piece of writing, then a short story and ultimately, develop it into a novel - all from the germ of an idea.