Your relative is little more than an insensitive fool. Mental illness is far from the black and white subject that your relative makes it out to be. There are many factors to consider here and anybody who tries to say that you're a bad person for having a mental illness has little more intelligence than a monkey and is therefore, not worth your time or energy.

As far as the whole "hurt or be hurt" topic, I've been faced with this issue myself more times than I care to admit. I can't tell you how many times I've had to force myself to not screw people over to get ahead in life or become an abuser just to get the love or happiness that I so desperately crave out of others in order to compensate for my weaknesses and inability to trust. I've also gone through many inner debates about focusing solely on making money thinking it would buy me happiness and love. I have more experience with this subject than many.

The fact that you are using pills rather than hurting others to ease your own pain proves that you are far from a terrible person. In fact, I would argue that being this way makes you better than most in many ways.

Hopefully you find some happiness in your life soon.