You can do anything in this life, just not everything. Continually adding things to your plate isn’t going to help you establish a life where you can thrive. Spread too thin, you, like the multiple projects you take on are not able to focus and grow any of them optimally. You are getting C’s in 10 different things, unhappy with the results, when you could be getting A’s in 3 things. 

There’s a ~200 page book called The One Thing written by Gary Keller which can be summarized in one sentence — You can only achieve great results by focusing on one thing at a time. (Please leave a tip, I saved you $20 and 2 hours!) Sounds commonsensical, but the sentiment is lost on the majority of us.

Most of us have been led to believe multitasking is the best way to get things done. And while you may be right in that you can definitely get more things done, you’re wrong in thinking that those tasks were completed optimally. In one study from the University of Utah, an absurd but remarkably confident 70% of the participants thought they were above average in their ability to optimally complete multiple things at once. They weren’t, and most likely you aren’t either. 

When people try to do several things at once — roughly 98%, according to the Utah study — gets worse at each individual task. The idea of answering emails, posting to social media, cooking dinner, hanging pictures on the wall, attending to the kids, while you listen to the news all at once is enticing, but also cognitively draining. Your mind simply isn’t set up to focus on multiple things at the same time. Even the 2% minority in the Utah study who didn’t get worse at execution, they also weren’t getting any better outcomes, they were just exceptionally efficient at switching tasks at a rapid rate.

So if multitasking isn’t the answer to getting things done, then what is? Prioritize what is most important. Delegate what can be better done by someone else. Determine what you will take on going forward. Execute on the things that matter. Obviously this is easier said than done, but with less multitasking and the more specific your attention, the more productive you’ll be because you will be getting A’s in all the things you care about, instead of C’s across the board.