To become a controller, you'll need at least :
- A right
and a left hand, two eyes, two ears, one mouth and benefit the ability to use each at the same time independantly one of each-other. Not to mention one foot, for the switch...
- reflexes and speed of a table-tennis player,
- team-spirit of a volley-ball player,
- cool blood of a football (NFL) quatterback (stay precise and effective even though you're going to be sacked in a few seconds),
- during your training, cope day after day, after day with situations that would lead the average human to immediately commit suicide,
- be able to focus as a curling thrower,
- think as a chess player : always 5 moves forward,
- learn as much rules as a lawyer, and be able to apply them with no time to check if you're right or wrong,
- be self-confident as a car seller,
- recheck everything twice (just to be sure) without losing speed,
- cope with lonelyness, as social life is impossible, due to rosters,
- If ever you keep any "normal" (meaning non-ATCO) friends, be able as a politician to change subject when they tell you : "I read in the papers that you're lazy and overpaid".
And I was about to forget the most important : a total lack of wisdom.
Anyone with a bit of brain and all these skills would choose another job.
Good luck !
PS :
Don't worry if you think you don't have the skills yet. That's normal : you're still human . You'll get them during the training.