3. According to the standards of the Bible, no matter how hard I try, I'll never make it to heaven, will I?
No! God requires absolute perfection and you--being sinner by practice and by nature--cannot save yourself no matter how hard you try. (Romans 4:4,5; Isaiah 64:6; Jeremiah 17:5,7)
Doing what is right and being honest, courteous and helpful to others is part of what God requires of us. But that cannot make up for the times we fail. Doing a good deed does not subtract one bad deed. The good deed is only what is required of us at all times in the first place. So then, there is simply no way for us to make up for the many times we've failed. (Luke 17:7-10; Galatians 3:10; James 2:10)
If we cannot save ourselves, then we need a Savior separate from ourselves who is unlike any other human being. We need a Savior who is separate from sinners. (Matthew 1:20-23; 3:17; I Corinthians 15:20-22; Hebrews 4:14,15; 7:25-27)
We need a Savior who is perfect and who can find a way to take away our sins yet, at the same time, provide us with the righteousness God requires us to have. The Lord Jesus is such a Savior. (Romans 3:21, 22; 5:17; I Corinthians 1:30; Acts 4:12)