The secret to success - Don't give up, just keep going.
Doesn't matter what we are doing or for what reason. The only way to succeed is to never give up. In Japanese this is called gaman (我慢). To gaman is to patiently preserve in order to see something to its end.
It is sooo easy to quit when something become difficult or uncomfortable. What people who quit don't know is that the obstacle is the path. The obstacle sheds light on the real path and is there to teach us something about ourselves. If we quit, then we miss that golden opportunity.
I know it can be hard, its supposed to be. Only through the challenge can we truly change.