Helena is at disadvantage in bokuho round one start, so simply doing 6pppp at some point will knock her out of it if she's ducking due to how difficult it is to get all of them correct. 7k is completely awful move to use in a round one fight ESPECIALLY that during whiff punish which i regret not throwing. for a good damage combo and oki after.
Doing jakehio movement against helena is a good idea since her only tracking move outside of bokuho is h+k which is a high which jakehio ducks or i have to do ss k which takes a good long while. Helena is somewhat linear in that respect. But if you don't respect her, she will hurt you.
Also you really not to stop doing jab throw, if i hit a p against a whiffed throw i'm at +36 and trust me nobody wants helena to stun them.