Consider your weak point in life. You may think of it as an embarrassment or a temptation. You may try to hide it. You certainly wouldn't want others to know about it. Give your weakness to God. Let God use your weakness to reveal His strength.
Where you are weak God says, My strength is made perfect in weakness (2 Corinthians 12:9). God's grace glories in revealing strength through your weakness. Ask God to get glory out of your weakness. Submit your weak point to God in prayer.
Notice in the Bible, God most often chose people with weakness and personal flaws of inability to serve Him. He always gets the glory to use those who are weak in the eyes of the world. Don't think God cannot use you because you are weak. Find strength for weakness. Depend completely upon God's grace with your weak point.
Those who think God uses them because they are strong and smart are subject to arrogance and pride. Where you are weak, there you can cast yourself upon God's grace and strength. Then you can say, I can do all things through Christ who strengthens me (Philippians 4:13). Consider your weak point, and ask God for grace and strength.