Don't worry about it, one of my friends has done 21 hours and still hasn't gone solo! That's not down to a lack of skill on her part, just events forcing her to have long breaks in flying. I find I have good flights and bad flights, it just happens for whatever reason. For example on my first solo, I had been doing circuits, I felt that it wasn't going too well, so I was pretty annoyed as I felt I had blown my chance to go solo on that flight. Anyway, we landed to take a break and when we went to get back in my instructor told me to go do a circuit on my own! So even if you think things arenbt going too well don't rule out soloing! I'm sure you'll get your solo next flight no problem
