Like others have said before, decent L40+ Ping wedges will make your life much easier. Although I doubt you'll ever be able to really stop the ball with the irons you have. Rocketballz have such a low trajectory, that you can't really expect them to stop, especially if the green is elevated. So, if you'll stick with them, learn to play the roll, it's not difficult to do on most courses. But be careful not to leave your approaches short, a lot of greens have a slightly elevated edge, so if you land on the edge of the green, your ball will shoot off into oblivion and you'll be working hard to save par.
As balls go, the slow meter Callies (L1) you bought don't really have much spin, L33 Callies tour (s) for 250 cr (50 less) have a slow enough meter but twice as much spin, so it could help. Just don't forget that the more spin a ball has, the more the wind affects your shot (both direction and distance).
P.S.: I just checked your level, you'll be eligible for G20s very soon, they're like night and day compared with Rocketballz (of any level). If you can afford that set, sell back the hybrid (completely useless club) and get 3 Ping wedges (preferably L40+ 95, 75 and 60y) you'll never need to buy another club until you reach legend.