Doesn't matter where you go.
Panic not, NATS is like that old physics experiment in school, Pascal's tubes if memory serves; where water finds its own level.
If you aren't much good at one thing you will be moved to another...... you can have absolutely no aptitude whatsoever to control traffic, even answering a telephone can be a major event.....don't despair.....you will be moved to another unit....your qualities and strengths may lie in a managerial post. Before you know it you will have achieved greatness, but not necessarily the respect that goes with it!
The massive ATC mega-centre is pleased to welcome a chap from the aerodrome world as new Deputy GM, and I'm sure he will guide us to a bright future, finding 68 controllers to cover the staff shortage might be a good start.
By the way, if you have over 45 minutes aerodrome experience there is a vacancy for Watch Manager at Gatwick, and don't worry, the selection process is designed so that ability and competence-to-do-the-job elements are filtered out.