This pain that you hold is yours. There is not a single pain quite like it. Nobody else on God's green Earth can feel this pain, or have the indescribable feeling of pride you will have when you overcome it. This pain is not your curse; This pain is your privilege.
Building muscle requires fuel! Here is a good reference graph to assist. - Note: Best amino acids are BCAA (Branched-chain-amino-acids), L-glutamine, and make sure you are getting plenty of magnesium from your diet. (Unless you like getting cramps)