Catholics do not have to believe any private revelations. We honor Mary on the calendar under the name of Our Lady of Lourdes and Our Lady of Fatima, and other titles from apparitions. We honor the saints to whom she appeared.
But, we do not have to believe or accept any of the statements. Of course, if the Church approves an apparition, we can happily read, study, and pray over these. We should not pay attention to any which are not approved.
The sayings of the seers, even those approved, are not infallible.
And, we do not have to follow those.
Just a reminder.