Levi's right maybe a new thread would be better or maybe someone can kindly split it
Otherwise, it's a start! Just to put it into perspective I spent about 1.5-2 weeks sketching before I started my design. As well as researching similar restaurants in my local area.
It wasn't just logos I sketched randomly, lots of geese, shapes that might suit, possible type ideas an any logos that could work before I put them together.
Then I put a few together and did some rough mock ups with lots of variations (no colour), I.e. Different fonts, landscape/portrait versions, swapping things round, etc.
When I was happy with one outcome I then went on to tweak it, adjusting sizes, more typefaces, etc.
Of course everyone works differently, but you really need to have a good foundation for the project (I.e sketching, researching the company's competitors) As Berry's brief gives such a good overview of the company/client it really helps with the research. Thus makes it easier to see what kind of direction the client wants to go in.
The added bonus of keeping notes, sketching and research is that you can keep it in your portfolio. Tutors and some employers like to see how you got to the conclusion of your work, it shows your abilities to analyse and solve problems
Sorry it's a bit long winded, hope it helps! But you're on the right track you just need to slow down and take in the scenery a bit more
