Muscles per se will not make you feel good about yourself. You decide you are worth something, then go to the gym and get buff to feel BETTER about how well you are treating yourself. A minor distinction, but important nonetheless.Muscle growth is determined mainly by three things: genetics, nutrition, and exercise. You canu2019t help your geneticsu2014if everyone is your family is a rail-thin skinny person, well, you will have a difficult time overcoming that.Nutrition can be changed. Good quality, high protein diets, low in carbohydrates ail help build muscle fastest.Exercising will build you upu2014best to chat with a trainer at the gym to see what will be best for your body type.Good luck!