If you could tell something to your younger self..

First i'd grab her by the face and ask her if she's listening because she has a short attention span, and you need to make sure she's actually hearing you.

Then i'd say "You're a lot more capable than you think" and then i'd ask her to nod if she understood. And then to make sure she understood, i'll ask her to repeat it to me, because sometimes she just lies just to get out of awkward deep moments, such as the one we're pretending to have right now.