No one is perfect.  We all fumble.  I make dumb mistakes.  However, that’s where Christ’s Atonement comes in. He is the only way we could possibly live with Him and Heavenly Father again. Through His Atonement and Resurrection, we’ll not only live again but we can be made clean so that we can dwell eternally in heaven. However, for us to get there we must repent. We show our desire to repent and be made clean by agreeing to be baptized. And then after that, we need to repent whenever we make a mistake. For me, that means repenting not just monthly or weekly but every day. Maybe I was impatient with someone or didn’t follow a prompting from the Holy Ghost to serve someone. Sure, those aren’t big things, but even they need to be repented of if we want to be completely clean. Don’t delay repentance. Not only will repenting bring you peace but it will also mean that you’re prepared to meet God whenever He decides it’s your time.