People keep telling me God will not give me more than I can handle. This is more than I can handle. What am I supposed to do with that?

“From the end of the earth will I cry unto thee, when my heart is overwhelmed: lead me to the rock that is higher than I.”

David writes from what he calls the end of the earth, with his heart overwhelmed. He makes no claim to be coping. His prayer is to be led to a rock higher than himself, which only makes sense if he has already conceded that he is not high enough ground. Scripture has language for being past your own capacity precisely because it expects that to happen to people.

“For we would not, brethren, have you ignorant of our trouble which came to us in Asia, that we were pressed out of measure, above strength, insomuch that we despaired even of life: But we had the sentence of death in ourselves, that we should not trust in ourselves, but in God which raiseth the dead:”

Paul tells the Corinthians about trouble in Asia so severe that he despaired even of life and felt he had received a death sentence. This is the same apostle people quote to prove that God never overloads anyone. He says the opposite. He was pressed beyond his own strength, and the result was that he stopped relying on himself and started relying on God.