“Serenity comes when you trade expectations for acceptance.” ~Unknown

Vincent Nguyen writes:

Damn lizard brain, I hate you sometimes. Why do you always have this thirst for more? Why must you have such impossibly high expectations for everything?

It’s good to have standards, but when is it too much?

Things can be going great for me and I could have the entire world love me, yet it wouldn’t be enough.

...

Meditate.When I’m meditating, my lizard brain just does what it wants, but I act as the detached observer. I let it talk but I don’t interact. I watch it babble on and on as I crack a smile, because when I meditate, I no longer care.

Then I take it to the next level by focusing in on my breath. I make sure that the only thing I’m worrying about is breathing. My lizard brain doesn’t have anything on me now because it slowly starts to fade away.

There are tons of extensive guides on how to meditate. Pick a method that seems interesting to you and try it out. You can be the detached observer or the silencer.

That's good advice. Read the whole article:

http://tinybuddha.com/blog/silencing-your-lizard-brain-stop-feeling-pressured-and-inadequate/