We are made in Him, and we should live for Him. I am nowhere near perfect, just like everyone else. I've been on that path, when you stop following Him... and I never want to go back, and don't plan on it. But, we are human, and even when we follow His path, we make mistakes. But that's why it's called a walk, it takes steps... every day, to grow closer to Him. Just because we are followers doesn't mean we are automatically "safe" and will get into Heaven, we have to ask for forgiveness too. Though, that doesn't mean act however you want and then ask for forgiveness.
"Decide instead to live in such a way that you will not cause another believer to stumble and fall."
- Romans 14:13