The Struggle to be Disciplined

Writing is a challenge for me right now. Usually, I am full of ideas and ready to sit down every few days to type something up. But not now. Now, I stare at the page and wonder what - if anything - I have to write that may be worth reading. (The calvinist in me thinks that nothing I have to write would be God honoring, but that's probably over analyzing it.)
Regardless, you come to a point where you have to consider the discipline involved to maintain activities. In swimming, it was clear - no one LIKES 4:45am practices, but you did them because you wanted to get better at swim meets. No matter how you FELT, you persevered. 
So why not with writing - or with other spiritual disciplines? Paul chose to "press on" (Phil. 3:12) to receive the prize. Why don't we consider this in spiritual and emotional aspects of my life? If God has called us, we must not grow weary, but seek him - even when we may not feel like it.
It is easy to be discouraged and want to give up. That's ok. Giving up, however, is not an option. Whether God has called you to wait for directions or run fast - we need to obey. We need to make sure we are seeking to be sensitive to his Spirit, have wise counsel, and press on.
When discouraged, downtrodden, or ready to give up we should "lay aside every weight, and sin which clings so closely, and let us run with endurance the race that is set before us,looking to Jesus, the founder and perfecter of our faith, who for the joy that was set before him endured the cross, despising the shame, and is seated at the right hand of the throne of God" (Heb. 12:1b-2)