It has been said that the greatest souls awaken through suffering. Suffering is not always a curse. Darkness shows us aspects of ourselves that need work which may not have been exposed to us if the Universe had not sent this suffering in the first place.
The greatest prayer you could make would to not ask the Source or God or the Universe to take the suffering away from you, but to instead have faith that everything that happens in your life is only happening to stimulate your spiritual evolution.
Thank the Universe for sending you that suffering to help you grow and evolve, both spiritually and emotionally. All experience is a blessing and happens for a reason, so don't be afraid to feel it and learn from it what it has to show you about yourself.