Some days all we can do, is rely on God’s provisional grace. Meaning, there are some days that when I wake I need to pray & ask God to get me through until lunch time. Then at lunch, I’ll pray that He’ll get me through until dinner. Then I’ll prayer for Him to get me through until bed & then I’ll ask Him to get me to sleep.
In my experience - God has never not given me the grace I need.
Grace is undeserved favour & in these circumstances of hardship, God acts in me to provide strength & perseverance to sustain me one minute, hour, day at a time. When we are at our weakest this is when we can see more clearly the power of a loving & might God.