Does it help or hurt to make corrections to my applications?

<p>I just finished applying to two schools(March, 1st). And I want to make some corrections to my common applications. Some are not big corrections, just the number of hours and weeks that I spent in EC, and intention of participating in that activitiy iin college. I think those numbers doesn't really matter at all.
But the other change can be a bit problematic, I think. I sent the wrong copy of my essay for CA. It wasn' the last version, it was the second-last version that I sent to U of C. Do you guys think I need to contact my academic counselor and ask her to update my information, or is it better to leave it as it is right now??? Thanks!!</p>