If your goal is to become stronger here buddy, then looking at your training routine you have laid out it looks like you are not resting/recovering enough to keep progressing and some of the muscle groups and set work you are training together is leaving you over trained and too tired/exhausted. Instead of 4 solid days training try 2 days on, then 1 rest day and repeat. I feel training chest and back together especially using supersets is simply exhausting yourself, try chest and shoulders or chest and triceps together. Train back on its own if you include things like Deadlifts and barbell rows as these are both hugely taxing on the CNS, if you don't then you could also train biceps after back as they will already be pre-exhausted and warmed up. If you want to increase your bench which it sounds like you do if you are quoting poundages, then make sure you train it twice a week - some like to train 1 heavy and 1 light session and others heavy/heavy, depends on your tolerances and what you enjoy. The more advanced you become you will have to accept the more the body needs time and rest to recover itself or you will simply end up going round in circles

I am going to sound like a broken record here, but Rusty is right on the money. Increase your calories and your lifts and weight will go up accordingly. It sounds like you have a solid base and some decent strength about you. Focus on dialing in your diet and taking extra time off throughout the week to recover. If you are trying to gain size, sometimes less in the gym equates to more. The same rule does not typically apply to diet when also trying to gain size, sadly.