For all the negative things we say to ourselves,
God has a positive answer for it:

We say: "It's impossible."
God says: "All things are possible." (Luke 18:27)

We say: "I'm too tired."
God says: "I will give you rest." (Matthew 11:28-20)

We say: "Nobody really loves me."
God says: "I love you." (John 3:16 & John 13:34)

We say: "I can't go on."
God says: "My grace is sufficient." (2 Corinthians 12:9 & Psalm 91:15)

We say: "I can't figure things out."
God says: "I will direct your steps." (Proverbs 3:5-6)

We say: "I can't do it."
God says: "You can do all things." (Philippians 4:13)

We say: "It's not worth it."
God says: "It will be worth it." (Romans 8:28)

We say: "I can't forgive myself."
God says: "I forgive you." ( I John 1:9 & Romans 8:1)

We say: "I can't manage."
God says: "I will supply all your needs." (Philippians 4:19)

We say: "I'm afraid."
God says: "I have not given you a spirit of fear." (2 Timothy 1:7)

We say: "I'm always worried and frustrated."
God says: "Cast all your cares on ME." (1 Peter 5:7)

We say: "I don't have enough faith."
God says: "I've given everyone a measure of faith." (Romans 12:3)

We say: "I'm not smart enough."
God says: "I give you wisdom." (1 Corinthians 1:30)

We say: "I feel all alone."
God says: "I will never leave you or forsake you." (Hebrews 13:5)