Hello
ScaredStupid and welcome to AFF.
There are so many safety systems that surround commercial aircraft that keep them so safe.
It starts with the aircraft themselves. Because they cannot merely pull over to the 'side of the sky' to fix any problems that all the vital systems have backups. The airframe itself is extremely tough - it has to be to withstand constant stress it is under. When you some of the accidents where the airframe has been damaged and yet the pilots have still managed to land the aircraft you realise just how strong they are.
This an incredible amount of testing that occurs during aircraft development. For example, during the development of the A380, the latest super jumbo, they destroyed a multi-milliion dollar engine to ensure that if it lost a fan blade during operation, that it couldn't leave the engine housing and damage part of the aircraft.
Then there are the pilots who have many hours worth of training behind them. And there are at least 2 of them too!
Then you have the safety systems surrounding aircraft as they fly in the form of air traffic control and the organisation of they air over Australia. For example, aircraft flying in opposite directions are assigned altitudes separated by at least 1000 feet. All large aircraft inculding the one you are flying in are equipped with TCAS. A system where aircraft talk to each other and if they are on a collision course, issues instructions to the pilots of both aircraft to avoid a collision.
In the case of an emergency, the aircraft is given priority to land and airspace they need cleared of other aircraft.
Even with all these 'systems', they are still many incidents reported to the safety organisation CASA. CASA investigates these and issues findings and recommendations. In the case of mjor problems with aircraft, Air Worthiness Directives are issued to all operators of that particular aircraft type. Even problems that occur in aircraft overseas are reported and information given to Qantas and Virgin. Boeing and Airbus also issue maintenance requirements to all operators if they find a problem.
Just about all aircraft accidents are the results of a chain of events and a breakdown of many systems which is why they compare it to slices of swiss cheese. There are many slices of swiss cheese which represent the many safety systems surrounding a flight. This includes the aircraft, maintenance, the pilots, Air Traffic Control, weather, etc. In order for an accident to occur, all the holes in each slice of swiss cheese must line up. What is says is that any system has holes in it, but with many systems the holes rarely line up which is why flying is still one of the safest forms of transport.
The fact is that there are lots of 'incidents' with aircraft we never hear about because they have not resulted in a crash. The fact that there are many and that they have not resulted in crashes is testiment to how safe flying really is.
Safety is constantly under review. Just know that you are safe flying with either QF or Virgin. Considering the amount of time Qantas has been flying, they are extremely safe.
There are many noises you will hear during your flight.. All of which are normal.
If you have a bumpy flight, also don't be concerned.. As I said earlier, aircraft are extremly tough.. They do not break that easily. And the pilots will fly around any bad storms (they have weather radar).
I hope this helps a little. Use what you learned in the fear of flying course and think of it as getting on a bus.
