True, although …
"Difficulty discarding possessions is characterized by a perceived need to save items and distress associated with discarding them. Accumulation of possessions can result in living spaces becoming cluttered to the point that their use or safety is compromised. Compulsive hoarding is recognized by the eleventh revision of the International Classification of Diseases (ICD-11) and the Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5)."
It’s healthy to hang onto a few ratty t-shirts because you might need them to mow the lawn or because they remind you of good times; you can even be a bit bummed when you eventually do throw them out. It’s compulsive hoarding when you do it even though it seriously bothers you or turns your place into a death trap.
The problem is that the future is uncertain. It's always possible that she might want to rewatch the X-Files at some point, even if she never actually does.