In this case, her faith is putting her in more danger. She's already referenced her followers' prayers as a reason to wait, and now it's "well, one week has passed, so why not five more", followed by "I hope it's not cancerous". This is absolutely denial at play, and it puts quite the burden on that TiffanyThinks family to possibly influence her to wait because of their prayers, whilst ~ 7,000 of them told her to get the surgery (assuming she's stage III). Unbelievably scary.
Ever since she told off her viewers, the TiffanyThinks comments are giving me flashbacks of Christina Newman, e.g. "whatever you want is the right choice", whilst ignoring the few comments that told her not to stop traditional treatment. One of Tiffany's commenters pointed this out and it really hit home.