Prayer For Grace To Be Forgiven

Dear God, I want to be forgiven. I don’t know what to do to be forgiven, but I want Your forgiveness, and so I am praying to You for the grace to be forgiven. I want to know that You have forgiven me all my sins. Please forgive me, God.
I have done a lot of wrong things, really bad things that don’t deserve forgiveness, but I have been told by my Christian friends that Jesus Christ died on the cross to pay the price for my sins, and God, I believe that He did. And I am sorry for all my sins. I repent of my sins, because I know that it was my sins that sent Jesus to the cross.
I cant quite take it in that all I have to do is to believe that Jesus died for me and that He rose again, and that by believing in Him for my salvation, You will save me by Your grace, forgive my sins and give me eternal life. Thank You, Lord.

Thank You, God, that by Your grace I am forgiven of my sins. In Jesus' name,