We have natural sinful natures we can only overcome by the mercy of God through repentance does it get easier with time yes sometimes there are some chains and strongholds to be broken. Do i sin yes is it ok no. Everytime i have been tempted into sinning my heart is broken and a disappointment and failure overcomes my thoughts. Repentance is continous the Lord knew we are human with a sinful nature and still he was willing to give his life for us knowing we will be tempted to sin again and again and we might fail but he also knew that we will continue to try and get back up as he guides,direct and helps us on his path. GOD created you because he wanted a family and wanted us to be a family that is why forgiveness is so importtant and why you are called brothers and sisters in Christ. We love because he loved us first. Have a beautiful blessed Friday!