Affect and Effect are twins. Sometimes you can tell them apart, but other days it’s difficult.
I hope this post will have a lasting effect on you. (See what I did there?)
Affect is a verb. You use it to influence something. It can be used in the act of changing something.
The book affected me to do something inspirational. (The book influenced me to do something.)
His words affected me so much that I would do something I’d regret. (He influenced me to do something.)
Effect is a noun. You use it when you’re talking about the change itself or the result of something.
The drug has many side effects. (Taking the medicine can result in other symptoms.)
The remix of the song had a higher effect as the original version. (Listening to the remix song resulted in better buys.)
I hope this post affected you to make better grammatic choices. (Okay, I’ll stop now.)