Yeah basically what CJ said. Also i guess you could try using free canceling more. Gives you time to bait for a counter and begin the looping. Also try doing combo's that keep the pressure going, so try getting higher launchers. And plus this video didnt do you justice, i wanna see you fight S ranks again. That really showed your skills more.
Oh, I didn't catch this in the other video; work on a BKO combo that you can do near a wall. 4PPK works fine in neutral zones, but it splats on the wall and isn't great for Helena's momentum. I used to do one with a 33P4P; think mine now looks like P-66KP(charge)P.
Might want to practice holding individual strings carefully, perhaps starting with Kokoro. (Though LOL @ the triple low kick hold in round three) You have this habit of going for low holds during mid strings; if your opponent (rightly) sticks to mids, you'll get bodied that way.