Do I have to use Sequence of Tenses?

There is a sentence:

She brought confusion to my world but I don`t need it.

Do I have to use Sequence of Tenses? Because I think that it should be: "She brought confusion to my world but I DIDN`T need it. "

Solution 1:

Your original version is correct. (It also would be correct with didn't.)

Look at this webpage. It says that

In cases where a universal truth is conveyed, the present tense may be used after the past tense.

While I don't need it isn't quite as eternal a truth as their example, that handwashing prevents infection, it is still a truth "that doesn't change with time," so you can use the present.

We would be more likely to use the present tense in this sentence if she is still bringing confusion to your world.