Hey! Welcome fellow new-forum-er! :)
When it comes to foodie blogs, I'd suggest mainly just keeping your own style of writing about what you love! :)
People can tell when someone truely has a passion for what they write about. Maybe include pictures, have themes each week, try to update it weekly at the least (I should take my own advice here!) ....
One of the things that I've tried to do in mine is a weekly new recipe project.However, I don't always follow through *lol*
Moderation definitely is the key to many things in life. :)
Maybe explore ethnic foods as not only something interesting for your blog, but as a way to try new things in general.
Best of luck, you should put your blog link in your signature on here! :)
~You don't need to go to culinary school to learn how to cook!~