If you die do you go to heaven?

When you die, you only go to heaven if you believe that Jesus Christ died on the cross for your sins.

Another Answer:

According to Scripture, NO, you sleep awaiting the Judgement like all mankind, except Jesus, is doing.

John 3:13

New International Version (NIV)

13 No one has ever gone into heaven except the one who came from heaven-the Son of Man.[a]