it's not that simple
One of life's biggest disappointments is when people say "it's not that simple." Constant pressure from social media, exclamations from friends, parental guidance - lies all around and nearby. "It's not that simple." You can't just go and become someone, learn something, or create something. You must first... "It's not that simple."
Everyone wants you to give up, drop your hands, abandon the cause. Everything is simple. When they say "it's not that simple" - it's a lie. If they say you can't do something - just do it and you'll understand that everything is very simple.