In order to play the violin, you must sacrifice the time it takes to learn and practice the instrument. To take the afternoon off and play golf, you must sacrifice the sale you would have made. Every time you make a choice, you are expressing your priorities. If you don't like where your life is going, take a good look at your priorities. Not the priorities you claim to have, but the priorities that are revealed by your choices.
Every choice is a decision to sacrifice all the other possibilities.
You must decide which possibility is the most important to you at any given time. Make your choices accordingly.