When I was a young Christian, I learned a lot of things I had to unlearn as I grew in age, knowledge and wisdom. One idea was the premise that because we are flawed human beings, we will sin everyday. It might be helpful to know that "sin" is an archery term meaning to "miss the mark." With that in mind, it sounds logical when you think of how flawed mankind is, but when you really think it through, as Christians, it doesn't make a lot of sense.
If I've made a commitment to Christ (Rom 10.9), and if I'm renewing my mind with His Word everyday, or most days (Rom 12.2), and if the Holy Spirit is leading and guiding me into all truth as Scripture promises (Jn 16.13) - why would I sin everyday? The idea that believers sin everyday is a great way to keep a heavy load of guilt and condemnation heaped upon their backs, preventing them from living in any semblance of true Christian victory (1 Cor 15.57).
The image of guilt-ridden Christians walking around looking like they've sucked on lemons all day is a great way to keep people out of the Christian community. Why would any believer want to live a life of doctrinally induced condemnation and guilt? Who would want that? Not me!
Here's my proposal. I did an experiment while I was in Bible college that worked really well for me. Let's see if it makes sense to you. Beginning at the top of the hour - try not to sin for 15 minutes. Go! OK, times up. How'd you do? No sin? Good. Let's move on to 30 minutes. If you can go for 30 minutes without sin, you can probably go 1 hour. If you can go 1 hour, you can probably go for 2 hours.
You see where I'm going with this. Two hours turns into 4 hours and then 8, 10, 12 and before you know it - it's 24 hours. Wow! You went a whole day without sinning, and that blows the man-made theory that you have to sin everyday because of your flawed human nature.
Now, if you want to sin everyday, that's up to you, but it's not something you're bound to do or have to do. It's a choice that you will make every time you are confronted with a choice. You can choose to respond to people in a healthy and godly way, or you can bite their heads off. You can be honest in business, or you can choose to deceive and manipulate people. Sin under a New Covenant dispensation is a choice. So, throw off that heavy burden of "unhealthy doctrine and self induced guilt" and live a victorious life in Christ. It is a lot easier than you think!