"It's impossible"
All things are possible (Luke 18:27)

"I'm too tired"
I will give you rest (Matthew 11:28-30)

"Nobody really loves me"
I love you (John 3:16 & John 13:34)

"I can't go on"
My grace is sufficient (1 Corinthians 12:9 & Psalm 91:15)

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

"I can't do it"
You can do all things (Phillipians 4:13)

"I'm not able"
I am able (2 Corinthians 9:8)

"It's not worth it"
It will be worth it (Romans 8:28)

"I can't forgive myself"
I forgive you (1 John 1:9 & Romans 8:1)

"I can't manage"
I will supply all your needs (Phillipians 4:19)

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

"I'm always worried and frustrated"
Cast all your cares on Me (1 Peter 5:7)

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

"I'm not smart enough"
I give you wisdom (1 Corinthians 1:30)

"I feel all alone"
I will never leave you or forsake you (Hebrews 13:5)