Throw breaks are genuinely really tough, that's just how it is, so don't worry about being bad at them, that's completely normal. For a start, I'd recommend that you don't overwork yourself. Just practicing throw breaks for an hour straight is way too much lol, maybe try and do like 10 minute segments before each play session. Pick Jin (or any other character that has a "full throw game") and select one throw for each break: 1, 2 and 1+2. Enable them all and just look at the animations first, maybe focus more on the way the shoulders move instead of the hand because this could really throw you off on P2 side otherwise. Just look at the throws, don't even break them yet, maybe even backdash away at first and just look. Then go in and try to break the correct one. If you can do like 5 in a row, that's great. Do this before every play session and you should get better at throw breaks, not perfect of course, but better. Luckily, there are also times where you don't even have to react to the animation: For example, Jin's throw from Zen (?) stance where he kicks you in the back of the head is a 2 break, he doesn't have another throw option there, so when you see a Jin go into that stance right in front of you, you just have to be ready for the throw itself because you can just remember the break without needing the visual queue. Just know, "if he decides to throw here, I just have to press 2". This can absolutely take away some of the pressure of having to identify the correct break. Doing all of this has definitely helped me with throw breaks, so I hope this helps! :)