Congrats - yes!
My first out of the circuit solo wasn't a nav ex (although I was prepared to go to an alternate) but some general handling practice in a area of airspace thats not too busy. Joining is less of a worry too at my controlled field (Prestwick) where you just do what ATC tell you to do (while keeping a good look out!) so the big issue is dealing with the clearances in and out of the controlled zone (which my instructor could still hear from the ground...). Difficult to get lost too as if you follow the coast you will eventually hit it...
Great feeling though!
What was much more onerous was my first land away. I then had to get clearance through different airspace (Glasgow - including having a backup route if they wouldn't let me through) and deal with an uncontrolled field (Cumbernauld) as well as finding parking... A big confidence boost when I got all that right!
QXC coming soon...