Alright, thanks for the advice and critiques, Ten and Tokyo Pewpew.
@Ten, I'll try to stop the 4P > throw and the 66K. I think, since I'm still new to her, I just use 66K to get a critical stun on the opponent, which is bad since it's unsafe and whiffs easily. I'll definitely work on that, as well as watch AP's Kasumi beginner video. I'll be messing around more with 4P / 3K / PK and 66PP. However, 66PP feels awkward for me so it's definitely something to get used to. Interestingly, Ayane is distance and range while Kasumi is upclose and pokes so I'll have to work around Kasumi's spacing.
@ Tokyo Pewpew, actually, I messed up the timing for that, tbh. Still getting used to muscle memory for her moves. A smaaaall delay can change things dramatically. lol So my opponent managed to block it. And, thanks for the input in using Kasumi's other kick launchers. I still haven't found myself comfortable with 33K or 3H+K and their follow-ups so I'll tweak around my mixups. H+K is the easier option for right now.
Thanks again, guys. I'll come back stronger.