Fasterlander,
I agree with what everyone else has said. I'm in a similar position to you, pre-solo and with any luck and a bit of good weather I will going solo next week. You can either look at it as 'omg what happens if... etc', or you can see it as a real achievement, as the culmionation of all of your flying upto that point. Thats what I see it as, I get excited just thiniing about it now lol. Picking up on some of the above opoints, your instructor won't let you go solo until he knows your ready, but also until he knows that you yourself think that you are ready. I honestly think i'm ready. Question is, do you?