What do you think of this topic for my response to common app prompt 3?

<ol>
<li>Reflect on a time when you challenged a belief or idea. What prompted you to act? Would you make the same decision again?</li>
</ol>

<p>What I want to talk about: How I challenged my old mindset. I used to think that I couldn't get good grades because I thought I was born stupid. In elementary and middle school I couldn't even get a B. Once I started believing in myself, I started getting excellent grades. My 2nd period GPA of Sophomore year was around 2.5. My GPA has increased for 7 consecutive quarters, the latest being a 4.25. </p>

<p>^That is how the essay will look in general, there will be a lot more words and it will look pretty. However, I'd like to know if it is a good idea? </p>

<p>It seems original, inspirational, and it's all about me! </p>

<p>Any thoughts? Thank you!</p>

<p>my impression for that prompt is that you’re supposed to write about when you challenged a notion in society or by interacting w/someone. your topic reads too much like something they could already tell from your grades/gpa.</p>