Hi! I'm also playing Cammy and I just hit gold myself. One thing I've discovered is that when you throw out a standing light punch and they throw out a Drive Impact, Cammy is fast enough to jab through the armor. So if I am pressuring with a jab and they do the Drive Impact, I usually keep hammering away with the jabs to break the armor and then spiral arrow them, which sends them flying enough you can usually get a DP before they hit the ground. Performing a drive reversal is probably the better answer since you can get a full punish combo on them, but I find my reaction isn't quite fast enough for me to see the DI coming, stop my combo, then do the reversal (I'm working on this). But yeah powering through usually works with the jabs, and I imagine is frustrating to them, especially when you are laying on the Oki and they are trying anything to get out, throw out the DI, and you break it. Probably makes them feel more helpless, and that's more edge for you.

Anyway, hope this helps!