If you haven't read Man's Search for Meaning, there's only one piece of advice I have to offer: Please do.

Some gems from this life changing piece of work.

"...success, like happiness, cannot be pursued; it must ensue, and it only does as the unintended side effect of one's personal dedication to a cause greater than oneself."

“The one thing you can’t take away from me is the way I choose to respond to what you do to me. The last of one’s freedoms is to choose one’s attitude in any given circumstance.”

“What is to give light must endure burning.” 

“So live as if you were living already for the second time and as if you had acted the first time as wrongly as you are about to act now!”