My role model is Roald Dahl. Reading his books, i found myself fascinated by his interesting stories and creative characters. I especially like the messages and lessons in his books. I learned that we should always believe in our abilities. As a result, I became more confident and hopeful about my future.
Here, because the resulative confidence has a relevance to present time, became can be replaced with have become?
Two have different meanings in this context or interchangeable?