One of the many things that separates Christianity from any other religion is the fact that one doesn’t have to “do” anything to get to heaven. There’s only one way to come into a corrected relationship with God, and that is to take the sacrifice of Jesus as the payment for your sin.
There are always consequences for our actions, and scripture tells us that the consequence for sin is death. Yep, there it is. Death is what we deserve.
But, simply because he loves us so more than our little minds can imagine, Jesus took our place. God put on skin and came to save us. He paid for our consequences with His death. As simple as it may seem, it’s the truth. Remember when Jesus says He’s the only way? That means you can’t be good enough, or rich enough, or work hard enough to make it on your own.