Hello Sarah.....I can't add much more than the excellent comments from Keith and Dr.Mark. What they tell you are the facts...cold, hard reality. There are of course the few & far between who make excellent money, but they've been here a long time, as well as meet the requirements above. They also write on several sites.
Just one more thing.....I probably don't need to remind you that this is America and of course we CAN divulge our own earnings if we so choose. We don't take an oath and as far as I know an HP "gag order" is not in force. AND "LUCK" HAS NOTHING TO DO WITH EARNINGS!
The thing is, the vast majority of writers don't wish to divulge specific amounts of income. It's rather private and it fluctuates a great deal anyway. Then there are those who make so much they don't want to seem as though they're bragging. I am NOT one of them. Not even in my dreams.
I'm more like one of the hubbers who make so little, they refuse to incriminate themselves.
The decision is yours. A saleswoman, mother and student?? Unless you're also something other than a human being, you haven't the time it requires to really EARN. Believe us. Just call us the Bubble Busters.