Focus on one thing
Now it came to pass, as they went, that he entered into a certain village: and a certain woman named Martha received him into her house. And she had a sister called Mary, which also sat at Jesus' feet, and heard his word. But Martha was cumbered about much serving, and came to him, and said, Lord, dost thou not care that my sister hath left me to serve alone? bid her therefore that she help me. And Jesus answered and said unto her, Martha, Martha, thou art careful and troubled about many things: But one thing is needful: and Mary hath chosen that good part, which shall not be taken away from her - Luke 10:38-42
If you take your time and focus on one thing, it will not be easily taken from you. Your strength is easily depleted on many things especially when you try to do too many things. Focus on one important thing and master it. What is that one thing that you would do, that would make all the other things easier or unnecessary? Find that thing at it would be like one who finds the first domino, pushes it to bring all the others down almost effortlessly. Trying to do too many different things would make you a jack of all trades and master of none. Focus on one thing, one skill, one sport, one business and give it your all and watch yourself flourish. The 10,000-hour rule also supports this claim.