I love the quote above by Aristotle. It reminds us that small decisions, small actions repeated again and again over the course of time are what lead us to our goals and are what we become.
Don't give up when you are tired of sacrificing and being frugal. We know that being frugal is being a good steward of the money the Lord has entrusted to us, and is doing what is good. Galatians 6:9 says, "Let us not become weary in doing good, for at the proper time we will reap a harvest if we do not give up."