Not by discussions nor by argument, but by lifting up Christ shall we draw men unto Him.
When I cannot read, when I cannot think, when I cannot even pray, I can trust.
All God's giants have been weak men who did great things for God because they reackoned on God being with them.
Depend on it. God's work done in God's way will never lack God's supply. He is too wise a God to frustrate His purposes for lack of funds, and He can just as easily supply them ahead of time as afterwards, and He much prefers doing so.
Do not have your concert first, and then tune your instrument afterwards. Begin the day with the Word of God and prayer, and get first of all into harmony with Him.