Yield to the understanding that some people are NOT going to hear you... some will not even stop talking enough to listen to you.
It takes yielding because a Christian walking in fellowship with God will see things that they are doing that is hurting them. But, even if they "need to" stop talking and listen... some will not. That hurts us deeply in our hearts, but this comes under the 'suffering with Christ' clause of our service to the King.
Be patient, be kind, be wise and keep praying and trying, but don't try to out talk them. If they miss it ... they miss it. We will cry together about it. But, accept it and go onward.