Without proper breathing, range of motion, etc., forget about seeing results this year. Inhale as you're pulling, exhale as you let it away. Every time you're at the top of the lift, hold it for a 2 count. Letting the bar down slowly will give you the most noticeable strength difference. So, that's it.
Heavy set is to failure.
Then, do one last cool down set with your starting weight. As you're pushing, exhale as you push up at a 3 count, hold weight at top for a 2 count. Then inhale as you lower weight back down at a 4 count. Lifting this way may throw you off. You will probably have to drastically reduce the weight you're currently doing, but believe me, it's worth it.