If you only have 55 hours, my suggestion would be to go and do some flying.... solo! By all means get a few hours with an instructor if you're not current or need to be brought up to speed on UK procedures. But you need to start making your own decisions about where you're going to go, what you're going to do, whether the weather is good enough and so on - and solo flying is the only way to do that.
Once you've done that, then it's worth doing the IMC rating (or as 1/2-Mexican says, some aeros, or alpine flying, or floats, or tail-draggers, or whatever else you fancy).
Make sure you read the requirements for the CPL in
LASORS, and make sure you satisfy all the requirements. The are requirements for a certain amount of solo time, and a long cross-country, as well as total time, which must be satisfied either before you apply for the license or before you start the course (far easier to satisfy all the requirements before you start the course, though, except maybe total time).
I think you are probably in the most fun part of the training now - the bit where you can do whatever you like. So whatever you decide to do, make sure you enjoy it!
FFF
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