I'd forgotten when I last posted, but one of the most useful things I did was start training to be an A/G radio operator, at Sleap. I only did six hours, then realised I didn't have time, but it was all during summer weekends, when Sleap is very crowded. I had to handle all the incoming and outgoing aircraft, plus often half a dozen or so in the ciruit, and was left to get on with it unless I really couldn't cope. Having to do it all fast and fluently, without knowing what would be thrown at me next, by pilots with all standards of RT (many worse than mine was) got me over my fear. Find an airport with A/G radio, and ask if you can help - Sleap will be delighted, but there must be others too. It really does work wonders.