Engine Failure at low speed is a handful and as a TRE I throw this into every sim session as a training topic. My own technique is to get it out of full reverse ASAP if the failure occurs below the ‘70kts’ call on decel. For failures above 100kts up to V1 don’t be too aggressive on the rudder, just squeeze the pedal and trend back to the Center line as opposed to trying to do it in the shortest possible time, this leads to over controlling. If I ever have a new trainee who is struggling I will arrange some extra time just to run failures at different speeds as purely a control exercise with no calls etc. Amazing how quickly you get the feel after doing five or six in a row and getting to play with the rudders in a ZERO jeopardy environment. Try not to make it into a ‘big’ issue, just speak to the training provider and ask for some targeted training to address the issue.