It is wrong to be self depreciating.
Kyle is upset that he has been gaining weight and looks in the mirror to make an assessment of how he looks.
Kyle wants to form an opinion of his personal appearance.
Kyle gives himself a pep talk in the mirror, where he verbally expresses that he needs to do a little gym work but that he is worth the effort.
Kyle does not feel anything good about his appearance and forms the opinion that nobody could ever be attracted to him.
Kyle starts a new gym membership and a whole new program of self-care, and he feels better than he ever has before, both physically and emotionally.
Kyle loses a lot of his self-confidence in social situations and starts to avoid other people due to his lowered self-esteem.