Warren Buffet, the famous billionaire and one of the richest men on earth, reportedly said to his pilot of 25 years, "The fact that you're still working here tells me I'm not doing my job."
He then told his pilot to write down 25 goals he was working on, and to narrow down the top 5. Buffett's sage advice was to only follow those top 5 goals, and to say "no" to everything else.
You can do the same thing: rather than overextending yourself, start tuning up your turn down skills. For instance, if you want to start a business, learn to say "no" to frivolous activities that waste your time. When you start prioritizing yourself, positive change will arise in the blink of any eye.