Knowing lingo is fine, but can you actually DO kara-throws? It is the number one skill of Ken players for pressure imo. Watch this excellent tutorial on his kara throws.
Can you do those block strings into kara throws? Can you do them consistently? As soon as a Ken starts busting kara throws out with the huge range his 6MK gives it, its a wake up call for the opponent and they are officially on notice. Most average or non-pro players will begin to fear the throw and turtle more or make mistakes like throwing out random shoryukens in hopes of catching you throwing or focus on teching the throws and eating bigger combos or simply start jumping and eating big damage that way. You obviously cant throw every time you attack, but it is a fearsome tool that is essential to your rushdown imo.
Also, his c.MK is his best poke. Try that if you are getting stuffed. Huge range and cancels into specials.
Main thing is to a) break zoning or establish your own zoning (rare, but there are times you will want to be zoning) and b) apply pressure. I assume you can get in close, so work on the block strings in that video above. They work with or without the kara throw and all confirm into combos or tick throws. Your main goal is scoring the knockdown by any means necessary. Also, work on dashing. It is an excellent skill for closing distance when they give you the opportunity. If its a knockback knockdown that leaves you far away, dash in immediately or close as much space as possible. Dont jump after or walk towards or only dash once if there is time to dash twice, etc. Makes a huge difference in the rushdwon if you are on top of them before they can even begin animating wakeup.