have a serious toll on(отрицательно: It's wonderful that OP had this and other nice experiences. But as someone who has been victimized by homeless people on too many occasions to even keep track of, it doesn't feel great hearing someone doesn't care about my experiences, experiences which have had a serious toll on my mental health, simply because they haven't experienced the same first hand.reddit.comART Vancouver)
deep waters(Англо-русский фразеологический словарь А.В. Кунина, М., 1984: "These are deep waters... Be cautious and think twice." – R.L. Stevenson 'Catriona', Ch.3 – "Это дело серьёзное... Будьте осторожны и хорошенько всё обдумайте." • "These are much deeper waters than I had thought." (Sir Arthur Conan Doyle) – Положение гораздо серьёзнее, чем я думал.ART Vancouver)