The truth is there is suffering and the other truth is there are ways via which one can end suffering. I have compassion for people who suffer, but not sympathy for people who choose to continue suffering and not look for ways to end it.
The “our brains are not wired the same, we have a unique chemistry and personality” is a bogus explanation given by people suffering from victim mentalities. The truth is your brain, chemisty and personality is not fixed and changes. You have the power to do that through changing your diet, lifestyle, habits and thinking patterns. The diet is a big one because your entire body is biochemical and it is made up of the food you eat. A change in diet makes a remarkable change to function(for the better) of the body. This is the tried and tested wisdom of Ayurveda.
I know of many people who are are depressed, suffering from abuse and mental illness come out of it. I have also seen, because I had conversations with these people, how many of them begin to define themselves by their illness and as soon as they do that the illness becomes them and they actually want to keep that going.