Spot on + learn to manage the focus during the round - you can't keep it up all the time - look at it like a box of 25 matches/round and learn to ignite every single match before the target is called and then (once the shot is completed) let it die and try to keep your mind occupied with something out of shoot...move and breathe sloooow and if you feel nervous - yawn. Follow your pre shot routine and if anything (even tiniest thing - like butterfly or a talk in the background) sneaks in between you and clay, abort the routine and start all over - don't be fooled and presume it is alright and you will manage somehow and despite call for the target - you will miss.
Now, even if guy that told you are going over the top was right...it may be technique related (stance, gun hold points, visual holds, triggering...) and should be dealt with during training session...or it might be focus related - in this case he already got your focus - away from the target...on registered shoot...not good. Don't listen to remarks like this on registered shoots - save them for training session and for someone who doesn't think but knows and can be trusted.