In the last week, my husband and I have witnessed to 3 people who really believed they were "good enough" to go to heaven. One person still believes he can work off the "bad" he's done in this life before he dies, one thought that he was just fine eventhough he is angry at God, and the last one was genuinely shocked and had never considered what I shared with her. Please pray for them all.
Don't think you will enter heaven on your own merit. If anyone tells you this they are lying. If you believe this, you are deceived. This is a great video which illustrates this very well.
If you are wondering, "Well, how do I know if I am a Christian or not?" Please click on the links on the right hand side of this blog. Listen to the sermon "Hell's Best Kept Secret" by clicking on the link labeled "The most important message you may ever hear." This is a great place to start.
After that go to God's Word, and read 1 John. It's only got 5 short chapters but is the gold standard by which you can examine yourself to see if you exhibit anything that these 5 chapters talk about. If you are a new Christian and don't know what to do next, I have a link to a pdf document that will guide you in principles for living a life that glorifies the Lord. http://www.livingwaters.com/downloads/save_yourself_some_pain.pdf