The main thing, is that you have to live your testimony. You can't say you have a testimony and you know what's right, and then do wrong. To be a true disciple of Christ means that you try your best, repent, and keep trying your very best. In the words of Sherri Dew "...a casual knowledge of the gospel isn't enough, you have to immerse yourself". You're either all in, or you're not in at all.
I know that the Atonement brings peace to everyone who uses it. We are loved. :)
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Can someone please buy me this picture? It's only $300...