Do I take it from your Q that you have been driving for 2 years? We have all done it, & we all still do it but remember, if you enter a 30 MPH Zone There ""MAY "" be a camera ahead I'm afraid to say, the camera does not give a sht how long & how much you need your licence 30 is 30.
I have been driving since 2000 and have never had a fine or points before this is just getting caught by unfortunate cameras which is my own stupid fault.
If I got banned I could very easily take the train or cycle so cant really give a reason why I shouldn't. Just have to take what I get and learn from it!