A good way to get over one's fear of an activity one finds terrifying is to do it repeatedly.
Evidence
Over half of people who have parachuted only once report being extremely frightened by the experience.
Less than 1 percent of those who have parachuted ten times or more report being frightened by it.
Conclusion
A good way to get over one’s fear of an activity one finds terrifying is to do it repeatedly.
Evaluate
The problem with this argument is that it suggests that engaging in an activity can reduce one’s fear of that activity, but the evidence is only a snapshot and so cannot prove a change in one’s attitude over time.