How muscles grow

Muscles only grows when they recover after heavy stress you put on gym.

During your workouts, you stress your muscles to the limit and it will cause micro injury, dont worry, it is not bad as you think. Muscle then will be repaired and something like a little 'overdose' to treat the injury, just to prevent the same damage happen in future.

So, try to use heavier weight after couples of months so that your muscle will experience new the so called micro injury.

The most important thing is that, muscle never grow while you workouts, it happen when you rest, a well 8 hours sleep. And protein is crucial in muscle development.

Have a 6 small meals a day which include protein rich food.

Good things never happen overnight