I always use my interrupts but seems I always a second behind someone else then people get all bent out of shape cause I not doing more interrupts, I really do try but seem to be behind someone else that just did it second before me. Yes I"m a little slower then most but would get them but its already done. But when wipe happens people you only did x amount of interrupts wtf learn to play and even worst.
So don’t interrupt the first spell like everyone else is trying to do. Let someone else catch the first and then you can catch the second. Let them have the odds and you get the evens.
Another option is to target a different mob. Most people will tab and just target whatever is closest. You can target the caster that is a little bit out from everyone else and usually catch all the interrupts with it.