At 500mgs of sus and 250mgs deca I think you could handle more time at the gym and take in twice your calories. Keep in mind your hieght and natural build is tall and slim its gonna take twice the work to establish a good core foundation before you start to blow up. And my most important question is are you using freeweights or just machines? Those machines can make you feel strong but its really resistance training and no good for bulking hit the free weights harder and consume more calories. Next cycle try adding dbol in the beginning and if you have a decent frame by then you'll blow up much more but keep up with it or it will be gone quicker than it came.