Affect vs effect
In their simplest form:
Affect (verb) means to produce a change or influence something
Effect (noun) indicates an event whereby a change has occurred
A good reminder is:
A is for action
E is for end result
So, let’s look at some examples:
The sun affects (verb) my mood.
My mood is the effect (noun / end result) of the sun shining.
Playing too much Fortnite can affect my son’s mood.
The effect of playing too much Fortnite is a moody child.
A = Action
E = End result