Here are some quotes that I hope may resonate with you.
"Happiness in intelligent people is the rarest thing I know." - Ernest Hemingway
"You will not be punished for your anger. You will be punished by your anger." - the Buddha
"The most contrarian thing of all is not to oppose the crowd but to think for yourself." - Peter Thiel
"In three words I can sum up everything I've learned about life: it goes on." - Jean-Paul Sarte