How well do you persevere?

We must persevere to accomplish hard things.  What have you used for motivation to push through a tough task?  How do you distinguish between perseverance and stubbornness?  What example do you have of seeing increased value by doing the hard thing?  How do you know when you are striving and should give it a rest?  How does your prayer life integrate with difficulties?  What has God used to build your capacity for obedience?  What has He used to build your confidence and faith?