there is no magic number of hours about solo, it is very much 'when you are ready' I started circuits after 3hrs TT and then went solo after 11 hrs, however I am an experienced glider pilot and so alot of it I already knew how to do.
Sounds like your enjoying yourself tho and thats the main thing. As people have said it will all come, if you read through this diary is the evidence! (solo seems so far away now
Happy landings!