Pay tens or even hundreds of thousands of computer fees first.

Generally, you may be laid off after flying for 10 years (this will give you more opportunities to study and prepare for the future).

The flight time is generally not fixed, and the sleep is chaotic (so you should know how to arrange time to rest).

The more holidays you have, the busier you are (you can't enjoy the warmth of your family).

Passengers often make things difficult for them (of course, keeping a smile and having a good attitude are basic).

Long-term radiation during high-altitude flight makes human body function fail faster than normal people (know how to supplement nutrition).

It's usually over once (depending on luck).