Ignorance is no bliss. And the worst bit about life is that no one will cut you some slack because you ‘DIDN’T KNOW.’
While this doesn’t mean that you must be an expert in everything, it simply means that you must educate yourself on the essentials. Also, ask for help. No one will laugh at you for asking for information about something. And even better, a few hours spent browsing the internet will equip you with the knowledge you avoid costly pitfalls.