Everyone has one. And it's great to get excited about all the new wonderful things you can discover like couponing, essential oils, how to cloth diaper and so on and so forth. But I have found the more I learn the more I feel I don't know and that can be disheartening when you hit that wall.
Nobody knows everything, but it's the journey and curiosity that drives us to learn more and more each day that gives us our satisfaction or at least it should. With me I am very competitive so that makes me even more upset when things go wrong or something doesn't turn out perfect the first time.
So with everything you learn be thankful for knowing that one tidbit that helps you out. You might not be this huge healing herb guru but you do know how to make Hand Sanitizer ( and that's very useful!)
Take a deep breath and keep things in perspective. And remember you are doing this to make your life better, greener, and ultimately simpler.