The obvious step to improve yourself is to take a look at the past.
For this we are starting where it all started, WW2.
Torbjörn was a happy man having just given birth to David, his turret, but peace didn't last long, so he was ordered to defend the streets of Berlin seen in this rare footage.

Many people refer to Reaper as Edgelord or kid who listened to Linkin Park one to many times, this is however easily revealed as "Fake News". Many Reaper mains simply find themselves in a hard part of their life, in which it is mandatory to miss every shot on the enemy mercy and then complain about the lack of heals as she revives her entire team. What happens if Reaper doesn't get immediate healing is to be seen in many incidents such as the infamous "Columbine school shooting".
Therefore it is imperative to always heal your Reaper because those souls he should get just don't show up without kills.

Mind-hacking not only refers to outplaying your opponents so they throw their keyboard through the room, it literally means making your opponents switch their line of thought. But in order to learn this ability you have to learn from the very best. An example of this would be Sombra as she has proven time and time agin that she is capable of performing this technique.
In this picture you can see Sombra convincing Trump to give her a special permission to travel to the U.S. which is commonly reffered to as visa.

To reach Overwatch mastery one must achieve enlightenment first, luckily there is a good way to learn how to by looking at our ingame Buddha: Zenyatta. Only few people know Zenyatta experienced tranquility for the first time under the tree that the great Buddha himself achieved enlightenment under.
His prefered hours to teach enlightenment are between 12:00 and high noon.