I know that sometimes we repress certain memories, and sometimes these memories come back to us, but is that always the case?

Do all our lost memories come back to us at some point in our lives?

Repression can be caused by us wanting to protect ourselves from certain things in the past, but what if the urge to protect ourselves is about the same as the urge to remember? Which would conquer?

Because although we want to remember(for closure reasons perhaps), we obviously also want to forget, otherwise we wouldn’t of forgotten in the first place, right??