All great advice. I solo'ed last August. It was an experience for me mainly because I did it alone. Long story, but I was ready so I did. But, I had, oh, probably at least 50 approaches and landings. I was confident and was ready, and it felt really good when I saw that plane glide in and grease in the landing like the pro's had been doing all day.

Keep on practicing both landings and takeoff's (touch and go). Just do bunches of them. Just keep going around and getting in the pattern, approach then land, take off go around and repeat. Once you feel real confident then do a few more then ask to solo. Ask your instructor if you are ready. If he feels you need more practice, then do it but don't sacrafice your expensive airplane on a "I may be a bit scared" attitude. Being on final can be a real tough time to learn you need a little more practice especially if you are not teathered with the buddy box.