"O you who believe, heed Allah! Let every person watch out for whatever it has prepared for tomorrow, and fear Allah: for Allah is well-acquainted with all that you do" (Quran: 59:18)
We spend every day of our life knowing that we can improve ourselves. Yet, we are always waiting for "tomorrow" to change. That tomorrow will never come unless we make it come today! Because "tomorrow" is not always guaranteed to come!
We all want the best in this life and in the hereafter, we pray to Allah to give us the best in this life as well as the eternal one, but if we do want the best...how many of us really strive for it? Allah says in the Quran...
"...no burdened person shall bear another's burden. That every man receives only what he makes an effort for: so his effort shall be noticed; then he will be rewarded to the fullest extent. And that towards your Lord lies the final end." (Quran: 53:38-42)
Time and money are the two most important resources of our life. We need to control them to achieve the best of both worlds. To control is to plan and to evaluate our performance.