SophiaGrace said:
And I think I confuse effect and affect.
That treatment was effective.
I was affected by that disease. (did I make a mistake?!?! Someone please correct me.)
Yes, those are correct. The fast-and-dirty rule for effect/affect is that
most of the time, you will be using "effect" as a noun (impact) and "affect" as a verb ( to influence).
"What was the
effect of your job loss?" (noun)
"How did losing your job
affect your family?" (verb)
I say
most of the time, because "effect" as a verb is usually used in expressions like "to effect change," meaning to cause change, and "affect" as a noun deals with emotion:
Three months into his tenure as Governor, he has still failed to
effect change." (verb)
"Dr. Swerdlov was concerned about his patient's flat
affect; she spoke in a toneless, almost emotionless voice and her facial expressions lacked her usual liveliness and animation." (noun)
You used adjectives up there in your examples, which make things a bit murkier, but remember that
"effective" = able to produce a desired result"
"affected" = "influenced," "touched," sometimes "harmed," depending on the context

English is fun!!