Nervous is a good thing

makes you think more about what your doing BEFORE you screw it up... been there done that
You MUST have 30 min epoxy to join the wing. By the time you mix up the 5 min and start spreading it out it will start setting up... you MAY get lucky and stick everything together just before it really fires up and sets hard... more than likely you will have something not just right and end up with a tweaked wing... not good... even if you did get lucky and everything lined up the joint will not be near as strong as it should be because the epoxy will have little to no time to soak into the wood. Wait, get the right stuff and take your time... you will be rewarded with a good flying plane that will last long time... Hopefully
Good luck
John