Bartimaeus was told to not yell out to Jesus. He was told that Jesus had more important things to deal with than him. But Bartimaeus knew that only Jesus could take care of his problem. So even though a crowd of people was telling him to not bother Jesus he called out to him anyway. Jesus then healed Bartimaeus of his blindness.
Regardless of how unimportant you may feel or how insignificant your prayer request may seem, Jesus always wants you to come to him. He wants to do for you what no one else thinks is possible.