Keep in mind that the results someone gets is determined by their genetics, diet, training, age, lifestyle, sleep, etc. Just because someone got great results, doesn't necessarily mean you will.
Steroids are catalysts. They speed up reactions but don't cause reactions. They basically enhance what you are already doing right and make it work even better. Diet and training needs to be the foundation. Steroids are just the icing on the cake, sort to speak.