Cut Off Lust (Sin) or Be Cast Into Hell

How do we view sin? Are we as serious about victory over sin as Jesus is? Does He really mean that we should cut off a hand or remove and eye and throw them away? It needs to go further than just amputation. When will we do something about a known sin? It is costly and painful to be honest but it is beneficial. Do we excuse ourselves saying that it is a small infrequent sin? Do we excuse and overlook splinters?
We are as safe as our quiet time. What kind thoughts do I have? We need to be radical in our pursuit of holiness. What am I filling my time and my mind with? Make no provision for the flesh. Drive all sin out.