Life is Sacrifice.
Of time; money; energy....etc.
No thing can be obtained without giving of ones' self. A harvest cannot be reaped without the effort of planting, watering, pulling weeds, etc. So why in life do we expects rewards to come easy? Standing by idly and watching a seed won't make it grow. If you want something to happen for your life, you must get up and work hard for it. That hard work, applied with faith will cause God's favor to activate, and you will be rewarded for your labor. 'Faith without works is dead'. So, why not sacrifice with a smile on your face.... and know that your efforts, however exhausting, are not wasted? Whenever you must give of yourself, do so with joy, not begrudgingly. God loves a cheerful giver.