By the very fact that you are here, your life is not useless. God has placed you here for a reason, and He is at work to complete His plan. Please do not become discouraged by the circumstances around you. We all go through periods of trial and testing, but it all helps God mold us into the vessel He intends for us to be. Spend some quiet, one on one time with Him. Speak to Him as a friend, because that is what He is. He cares about you, provides for you, protects you. Say a simple prayer and sit quietly, meditating on what you've said. Pray for His will to be revealed and for the courage to go where He leads. We are praying for His healing and encouragement upon your life.
No one and no thing is more powerful than the God who created it all. No one and no thing loves you more than the God who sent his Son Jesus to die and be raised again for your salvation.
I Thessalonians 5:16-18
16 Be joyful always; 17 pray continually; 18 give thanks in all circumstances , for this is God's will for you in Christ Jesus.
Hebrews 11:6
And without faith it is impossible to please God, because anyone who comes to him must believe that he exists and that he rewards those who earnestly seek him.