Mankind has gone through a lot throughout history. People have died untimely deaths and more are suffering. With the power of the almighty, I intend to take away and end 3 things I think has plagued humanity for so long.
Here they are:

1. I would eliminate the occurrence of natural disasters

Natural disasters are horrible environmental, geological and meteorolical occurrences that happen in large scale causing several deaths and destruction of properties. They include earthquakes, hurricanes, storms, floods, tornadoes, wildfires, drought.

These natural disasters have killed a lot of people over the years, rendering families hopeless and sorrowful. Even those who manage to survive these catastrophic events might end up with depression, anxiety, insomnia, and other psychological effects. Some may live with the constant fear of such event occurring again and may not be able to live a normal life anymore. Some even end up with disabilities for the rest of their lives.

The fact that these events usually occur suddenly and unexpectedly makes it even more devastating as people can barely do much to avoid it. If the almighty gives me the power, I want to stop these natural disasters from happening. I would further go ahead to stop human activities that would trigger them to happen like deforestation, excessive carbon emissions, etc.

2. I would erase cancer from existence

Cancer is one of the leading causes of death globally. It kills millions of people wordwide.The sad part is that cancer has no known cure yet, and methods of fighting the cancer are usually too agressive and draining for cancer patients. Lung cancer is the type of cancer with the highest casualty rate, and breast cancer is the most commonly diagnosed. Most times, people develop cancer suddenly(although it can be triggered by lifestyle and hereditary factors).

Cancer patients go through a lot of pain and suffering. Those with advanced stage cancer have to struggle with being hopeful about life as they know their days are numbered. It is never easy. The chemotherapy and radiotherapy involved in fighting cancer can be so exhausting to these patients that they want to give up. With the power of the almighty, I would end cancer without thinking twice. It has robbed the world of a lot of stars and potential.

3. I would wipe out every weapon in existence and prevent discovery of any more weapons

Over the years, the have been countless occasions in human history where weapons have been used to cause severe harm and loss of lives. Unnecessary wars have and are being fought and numerous innocent people have been killed with weapons which are even becoming more sophisticated to kill more people with greater ease.

These weapons have fallen into the hands of terrorists who have used them to kill, render people homeless and destabilize nations. Tyrants are building even better weapons of mass destruction in their countries. We've also seen cases where one person goes into a gathering with a gun and starts shooting innocent people randomly. If given the power of the almighty, I would make sure that no single weapon exists, so as to ensure that people would not inflict harm on their fellow human.

With these, I am sure I would have done enough to make sure the world is a better place for everyone to live in.