Chris Daughtry “beats himself up” over the deaths of his mother and his stepdaughter. The 42-year-old singer lost his mother Sandra to breast cancer back in November 2021 just days before his 25-year-old stepdaughter Hannah took her own life and explained that while he dealt with each death differently, he still feels “guilt” over them both. He said: “I dealt with both differently, processed both losses very differently — the common denominator in both is the guilt. The ‘I wish I would have said this. I wish I would’ve done this. I wish I would’ve called more.'” The ‘What About Now’ hitmaker -…