In the UK there's an old saying "The Grass is always Greener on the other side".
In other words, would you be prepared to give up everything you have to risk going to another country to do the same job there?
In the UK, ATC is, relatively, very well paid, we generally have very good terms and conditions, lots of time off and the industry is well regulated and well protected from a legal point of view.
There will of course, be people in the industry here, who will claim that perhaps we are over regulated and that management interfere too much in their operational lives.
What they forget is that if they don't like it they can move to another unit and earn much the same and have much the same life style, whereas if they could move outside the UK, they would have to work very hard to achieve the same.
There are UK ATCOs who have moved to Canada, the middle east, a few other places and have been very happy with their move, equally there are an equal number who try it and realise it's been a big mistake.
I'm not saying that you shouldn't try to realise your asperations, but you should be fully aware of the implications of what is ahead of you before you give it all up at home.