When you start feeling your spirit oppressed we can't disgard the fact that the enemy wants us oppressed, lithless, trembling, fearful, anxious, downcast, hopeless, faithless, striving, frustrated and consumed. I don't doubt the enemy attempts to wreak havoc on our emotions targeting our weak areas or when our walls are down. God's word says to be on alert at all times which means walk in the spirit and walk in faith.
Faith is powerful because it instantly takes us to the top of the mountain with our Shepherd Jesus rather than being in the valley hoping to climb out.
Ephesians 6:16 In all circumstances take up the shield of faith, with which you can extinguish all the flaming darts of the evil one;