Irishwhale,
If you want to be a pilot, then go down the pilot route of PPL, CPL, flight training etc., as has been defined above. If you want to be an avionic engineer, then study avionic engineering.
It really is as simple as that. Engineers are engineers and pilots are pilots. Sure, an avionic engineer would have a better understanding of the instrumentation that is displayed to a pilot than would an airframe/engine engineer but an avionic guy would still not be able to fly it, just as a pilot would not be able to rectify avionic defects.
Becoming a licenced engineer is not an easy task, just as becoming a pilot is not an easy task. Make your decision and channel your efforts into one or the other.
Good Luck.