That's normal Ruth. The difference is that you've had the sense to realise it. Many people plough on with a blunt trimmer and wonder why the results are not good. You can touch it up with a diamond slip or if your trimmer has four blades (much better than six in my opinion) you can often put it to whatever it is you use to sharpen your tools.
What you don't realise is that you've now opened a can of worms, and you are shortly going to get all sorts of advice from as many different people about how you don't need a barrel trimmer in the first place. I use one because that is what works best for me and it's quicker - but stand by....
