Kojiro I think you just need tips on how to zero in on what you do that IS working. You're doing impressive stuff. Some interrupts I'd never have confidence for.
What you need to do is spot: The opponent just whiffed. Why? You can do your damage, but you must understand how your opponent is thinking to get an advantage.
You also must not be passive about prep. Use prep as though you are certain what the opponent will do. Your payoff will be so much better. If you do 3(B) AB, it is because nothing in prep would benefit you. Proceed immediately to trip up some sort of prep reaction. That said, your style gives me the idea of baiting players into being interrupted with Prep BB / AB (block) -> Critical Edge.
As well, your loss to Pyrrha seems to be clumsiness rather than technique. The way you got yourself out of bad situations was... admirable. Look out for errors like not knowing how far backstep will get you and how long it takes to QS. Keep in mind BB is a good tool when Raph has +. Its use can create mistakes responding to 3(B), but more concretely, so long as you yourself are not being lured into BB dependence, the BBB CH string does good damage. Take advantage. I mention this because of how you respond to block pressure strings reaching their end. These are very insidious mixups only some characters have, and can be used much better than this player used them. When you have been given frames you must not be intimidated into passivity on the basis of the setup but solely on expectation of what the opponent does in -this- situation. You have the frames. Exploit them.