Extra Information, is too late?

<p>I just submitted my application for the UC system. </p>

<p>But after I done that, I realized that there are some circumstances I should talk about, difficult circumstances that affect my life everyday. </p>

<p>I didn't put them in the essay before because I was a bit ashamed too, I didn't want to come across as the poor kid who wants people to feel sorry for them. </p>

<p>So is it too late for me to submit a supplemental essay about these circumstances? If not, any advice onto how I would submit it?</p>