Jaycee, G-EMMA, I had no radio experience at all before my flight training started, so I bought a second hand aviation band scanner (cost me about 40 euros) and spent hours and hours listening to the R/T at my local airfield (which happens to be Schiphol). Helped me a lot in adjusting to the speed and phraseology, understanding what's been said, listening out unconciously for your own callsign etc. As a result, I've never had mike fright or anything.
Oh, and you should hear some of the mistakes the professional, big boys make. All the time. Readbacks are really there for a reason!