D Latch pins:
What im noticing
1) You are using latches. You wanna use master-slave D-flip flops, to output previous state while assuming current state, which brings me to...
2)Your clocking mechanism should be an actual clock instead of a pulse and you want to clock the whole mechanism instead of individual ff's. Maybe connect a clock and the pulse to an and and have it pulse once or thrice like you want. In any case if you want more help, show the inside of the D-Latch
