Magdamei - I went through what is ahead of you. I got my registration 3 years ago and also had to do 6weeks in cardio-resp.
It took me 8 months to find a placement!! I have sent applications to every general hospital in Ireland and was checking with each of them (ringing physio managers) every month. And it paid off.
It's very difficult time now as so many irish new grads are out of work and are begging for any type of experience so hospitals prefer to take local people rather then outsiders.
But - you never know. I would keep trying and don't give up!!!! One day you'll get a phonecall with "yes".

good luck