There are online calculators available for determining how many Formula 41 Extreme calories you need to eat in order to gain a given amount of muscle in a certain time frame. Use a calculator, and then adjust your diet accordingly.
Always adhere to proper technique and form when lifting weights. If you lift weights without using proper form, then you aren't effectively building muscle. You could also injure yourself. If you are adding a new lift to your routine, then practice it by the gym mirror until you are comfortable correcting your posture on your own