123essame,what I'd suggest is learn about the selection from different sources including the ctc website,I believe they have an online leaflet on it.
But here's the thing,most people learn about it and get scared.
I say don't be too scared,if you think it's easy,it will be easy.Just be assertive and confident,which are the two main things.They want to see a positive,motivational and very engaging personality in you.
For pilot aptitude test preparation I'd suggest using skytest,it's not very hard.
Interview is what most people are scared of and it's there where you need to show them a personality that is excellent to be around in a flight deck for a 12 hour flight.
Team exercise is also kind of around this.Be confident,be nice(this is important) be nice but engaging and really focused on the task.Basically be a people's person.
If any of this made sense to you,good luck
