Obtain that good, acceptable, and perfect, will of God
"I beseech you therefore, brethren, by the mercies of God, that ye present your bodies a living sacrifice, holy, acceptable unto God, which is your reasonable service. And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God." (Romans 12:1-2 KJV)
Constantly make adjustments
The problem with "living sacrifices" is they keep crawling off the altar! In other words, to be a living sacrifice you must continually work at getting back into the "living sacrifice" position, which is to constantly make adjustments to your attitude and your own way of thinking about things, by continually putting yourself back where you are allowing yourself to be used by God; By giving him "your reasonable service", always adjusting your thinking to His thinking, and always bringing your life and will into alignment with what His Word says!
The great news is that it will change your life when you do!
When you take His Word, what God says about anything, then apply your faith to it, and adjust your own thinking to conform instead to His thinking, you are able to then transform your mind! Your thinking will become like His, and through your new way of thinking, you will come to realize, understand, and even prove, God's good and perfect will for your life! This is why it's so very important to work hard at changing the way you think! Again, "as a man thinks in his heart, so is he." It will transform your life!
I remember hearing a story a few years ago describing the first astronaut's trip to the moon. Apparently, they were just shot upwards towards the moon's general direction, and then they had to continually make necessary course adjustments along the way to make it possible for them to finally arrive there. They said the trip was very zig-zaggy. In the same way, we must continually make necessary adjustments in our faith journey, and, we will eventually arrive where we need to be!