For this is how God loved the world: He gave his one and only Son, so that everyone who believes in him will not perish but have eternal life. John 3:16
And by "the world", John means you. Yes, YOU! God loves YOU so much that He sent Jesus to earth to show you how to live, both on earth and in heaven. All you have to do is believe and trust it to be true.
John doesn't say that only those who are rich will get into heaven. He doesn't say that you have to do lots of good works to have eternal life. There's no mention that you even have to go to church. All you have to do is believe that Jesus came to earth to give you eternal life.
So, just come as you are and receive the love that God so wants to give you!