Final answer:
Acknowledge your limits and inform the team member that you are not confident in your ability to perform the bag-mask ventilation task and request assistance from someone more experienced.
Step-by-step explanation:
If you have not perfected the skill of bag-mask ventilation, it is important to acknowledge your limits and take appropriate action. In this case, a suitable action would be to inform the team member that you are not confident in your ability to perform the task and that you would like someone else, who is more experienced, to take over. By doing so, you prioritize patient safety and ensure that the resuscitation attempt is carried out by someone who is skilled in bag-mask ventilation.