Javier has been feeling persistently sad and has lost interest in his hobbies for the past several months. His close friend suggests he might benefit from talking to a therapist. Javier replies, 'I appreciate the concern, but I've always been the type to solve my own problems. I just need to be stronger and push through this on my own. Going to a therapist feels like admitting I've failed.' Which attitudinal barrier to seeking help is most clearly demonstrated by Javier's response?