Tired?.... Burnt out?.... Done?.... Weak?.... No energy or strength?..............GOOD!
As much as we wish we had more strength to go on, God moves mightly when we have finally given up.
"Wherefore I take pleasure in weaknesses, in injuries, in necessities, in persecutions, in distresses, for Christ's sake: for when I am weak, then am I strong". (2 Corinthians 12:10)
As long as we still have strength, we will continue in our own power and confidence. It's not until we have given up that God can freely move in our lives. Take this time to relax in Him and trust that He is sufficient and needs no outside resources. This requires FAITH.
Do your best but leave it up to God to do the rest. There is only so much you were meant to do. Anything beyond this is from our own pride and flesh.