When I saw this video my first thought was, “What is this? Tolkien?”
Perhaps it is.
The Silmarillion and The Lord of the Rings present a seemingly hopeless struggle against evil. The protagonists were constantly challenged to overcome their limitations, make sacrificial choices, dig deeper for greater courage, rely not only on themselves but also on others, and then in the blackest of hours face down evil manifested in overwhelming forces.
Yes, maybe this is Tolkien.
I recommend a daily examination of conscience and regular sacramental confession.
Participate well at Holy Mass and join your concerns and petitions to those of the priest as he prepares the elements for consecration.