How do you deal with suffering? And can a person grow without suffering?
I do not think that suffering is the only way to grow, but certainly, experiencing hardship and overcoming it is a sure path to personal growth. Suffering and hardship, though they are, of course, hard to deal with, are able to extract very deep powers from within a person — powers of faith, of courage and strength, and the power to go on in spite of difficulty.
Part of our belief is that G-d does not bring a person a trial that he is unable to deal with. This is easy to say from outside the person undergoing the trial, but it remains true. The trials we have are able to uplift and elevate us–just like the sore trials of Avraham Avinu elevated him to become the first Patriarch of Israel.