Jesus himself was tempted by Satan (Mt. 4, Lk. 4). He trusted God fully for provision, protection, and purpose. The Father would no more lead us into temptation than He would withhold our daily bread. But as stated in James 4:2, "Ye have not because ye ask not." Both "give us our daily bread" and "lead us not into temptation" are simply requests for what has already been provided for us. This part of prayer serves as a reminder to us of God's promised protection (Ps. 91) and gives us an opportunity to release our faith and appropriate what has already been provided.
"No temptation has seized you but such as is common to man. And God is faithful; he will not let you be tempted beyond what you can bear. But when you are tempted, he will also provide a way out so that you can stand up under it" (1 Cor. 10:13 NIV). The victory demonstrated by Jesus is available to us. "But thanks be to God, which giveth us the victory through our Lord Jesus Christ" (1 Cor. 15:57). He has given it to you. Believe and receive it.