Hey, sit down and relax. There is really no big hurry to get the eggs in the incubator. Toss the 2 busted eggs, turn the upside down one over and let them rest.
Grab a beverage or something. Read the instructions through a couple of times. If your sis is there try reading them out loud to each other while looking at and touching the incubator. It aint rocket science lol. Most of us started right where you are.
Let the incubator come up to temp and see where its at. When the red light is on the heating element is on, when the thermostat cycles off the light goes off.
One thing about this model incubator, the adjusting knob is very very sensitive. You just barely want to move it to make an adjustment. It is very easy to overshoot your goal. Take your time though and you will get it right. You can do it!
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