Yet in all these things we are more than conquerors through Him who loved us.
(Romans 8:37)
You are already a winner. Even before the battle has begun, God has called how the ending is going to turn out. Our lives are a constant war between what we know we should do and what our flesh wants to do. We battle between what will feel good now, and what is the right thing for later.
For to this end we both labor and suffer reproach, because we trust in the living God, who is the Savior of all men, especially of those who believe.
(1 Timothy 4:10)
If we trust the living God, and believe what He says, then we know our labor is not in vain. We can have faith in the fact He has seen the end and has faith in us. When we rely upon God we can be conquerors with Him. But first we have to make up our minds and believe in Him. If we fix our minds on the main goal, and not waver back and forth, we will show true determination and devotion.
It is a snare for a man to devote rashly something as holy,
And afterward to reconsider his vows.
(Psalm 20:25)
Once we set our minds on our goal, let it stay set. Devotion is about making up our minds. It's about not changing later and not reconsidering our rash decisions. Once we know we're called to be holy and determine to renew our minds by taking on the mind of Christ, must stay the course and remember that our win has already been decided--if we don't waver.
Whatever it is we're struggling with today, we must remember that this battle with the flesh is only temporary. To win it, we have to determine to turn to God and rely upon His strength every time we waver. If we start to reconsider if the boundaries we've set for ourselves are a good idea, let us take this question to God, and really pray on it. His yoke is easy and His burden is light. He doesn't wish for us to set unnecessary burdens upon ourselves, but He also wants us to keep making the decisions which bring us closer to Him and the victory He has in store for us.