How do I become a pilot for an airline in Australia? (15 Years Old)?

For a while now, I've wanted to become a pilot for an airline. I've seen cadet programs for Jetstar, Virgin and Qantas. When I look around, some websites say "You need a Private Pilot License to get your Commercial Pilot License", and the others say you can just go for it and get a Diploma of Aviation.

Can someone explain how I can get a pilots license? I'm not from a "well-off" family, so I don't want debt from getting my Private Pilot License on top of a Commercial Pilot License.

I'm in an air-league which is the first step I've taken to becoming a pilot. I'm 15 years old.

What happens if an airplane engine fails while flying over the Ocean?

My name is Charly Dat Duc Lai and I wonder what happens if an aircraft loses all power while flying over the Pacific Ocean, even though if there are no airports nearby and there no safe place to land the plane. Let's just say that we're on a vacation from Las Vegas, Nevada, USA, traveling to Tokyo, Japan, the airplane is somewhere in the middle of the Pacific Ocean or your flight is half way to Tokyo, and then suddenly all of the engines fail unexpectedly and the aircraft loses all of it's electrical power, there's no land nearby and there are no nearby airports to make an emergency landing, it is all just all Ocean Water only. How do the pilots to get the aircraft to touch down safely without putting the passengers and flight attendants at risk?

Added (1). From Charly Dat Duc Lai:
Flying over land is no big deal since that it is easier to find soft landing spots and in many other cases, there are many nearby airports on land, therefore it is more easier for airplane pilots to make emergency landings, but however, flying over the Ocean and the aircraft loses all engine power is a huge difference and a big challenge for the pilots to get the plane to land safely and hopefully that the plane does not crash into a shark infested territory.

Added (2). From Charly Dat Duc Lai:
Who do they contact to get emergency help so they don't get surrounded by sharks? I also flew onboard an airplane before, I was traveling to Vietnam from Chicago, flying over the Northern Pacific Ocean, so, I know that in real life planes often flying over Oceans a lot due to long-range international flights. An answer from a real airline pilot would be much more awesome and by the way, I live in Chicago, Illinois.

Added (3). YouTube video links below:
Flying over the Ocean.





How do I find dimensions that match the exact airline I'm traveling?

I'm planning this europe trip to a bunch of places. During the trip, I use 3 different airlines. Of all of them, i calculated the smallest maximum luggage requirement for a carry on and a personal item.

21 x 15 x 7.8

15 x 11 x 3.9

Maybe i'm looking incorrectly, but for the life of me I can't find baggage online that has the requirements I need. Any advice on where to look, how to look, would be deeply appreciated.

Going on holiday but family don't know i smoke

I'm 15 and going on holiday for 2 weeks, i have been smoking almost 2 years and am highly addicted. I'm worried about taking cigarettes and a lighter on the plane because i will get caught at airport security. What should i do? Don't tell me to stop smoking because i'm not planning on stopping!

Who thinks it's rude for a TSA agent to give an attitude just because you showed your ticket to the agent doing bags while unsure what to do?

This happened to me while I was going through TSA while headed to my flight.

If a person is going through airport security checkpoint assuming they must show their airline ticket to the TSA agent(s) and that TSA agent who's putting luggage through responds by saying "I see your ticket, what do you want me to do?" in a mouthy tone with an attitude, it seems like they're trying to make one feel stupid for just being unsure on exactly what to do while going through the screening checkpoint. I feel they should just simply help people who are unsure of anything instead of giving them an attitude like that. Thoughts?