try the search function in the top corner, lots of stuff on OAA.
Id be more inclined to got to FTE in Jerez but even if I had the money to go integrated I wouldn't as its a lot more money for exactly the same qualification, personal opinion there anyway.
With regard to the age as long as your over 18 your fine but some airline may or may not like you to have some life experience before but there are more well informed people on here that me on that matter.