Wait wait, is this post for real? - Alright look this might sound common and maybe even tiresome, you probably heard this tons of time and hearing from it does get annoying, but I insist that you look past this and think outside the box for a change. I mean this in a positive way and not entirely negative towards your post. Maybe you are impatient, and so are many others who are trying to improve on the game are probably impatient as well, but you do have those that are willing to sit down and actually learn these types of things so that they don't have to go through such obstacles again.
Like mentioned before, my post is not towards you in any negative type of way, but this is all part of the game and how it generally applies to things. If someone is performing the option that works in their favor they will not stop doing it simply because you said so. They are literally absorbing that weakness off you and you are not doing anything about it. I mean, can you blame them? it's their way of winning and it actually works because there is more than one way to play the game, especially with DOA. You have to adapt and come off with a process with their own weakness. In fact, why is it an issue for you to do it too? - It's part of the game and you have to win no matter the cost. There is no pride involved within the actual match scenario. Nothing is truly taking effect until you actually win the game and making them figure out on how to deal with your winning.
Take the time to learn frame data or at least use it to find out what/which move is giving you issues so that the next time you can find a way on how to deal with it and no longer will you jump in the fray blindly getting hit by the same thing over and over again while getting spaced out in the process. You can't expect one to hit buttons all day on block and leave them stuck there to your needs, they have to make a move as well since you are placed at disadvantage for attacking so much on block or whiffing moves out in the open. You could get thrown for free on either of those situations so you too as a player should do it too so that they can feel it. If you won't apply to it then you are stuck with a brick wall until you actually sit down and absorb. If you have questions, ask around. People "will" help you. All you have to do is ask.