

This article is an excerpt from the Shortform book guide to "The Defining Decade" by Meg Jay. Shortform has the world's best summaries and analyses of books you should be reading.
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What’s the best advice for your 20s? How can you make the most out of these important years of your life?
Your 20s are an important part of life where you shape your future and the person you want to be. The best advice for your 20s should focus on how you can build your future and make your best self, personally and professionally.
Keep reading for the best advice for your 20s.
Advice for Your 20s: Looking Forward From Here
As you enter your adult life, you become entirely responsible for your own choices. You no longer have another adult figuring out things for you—it’s up to you now to figure out your life. There’s no magic formula and there’s no right or wrong answers on what kind of a life you should live. But there are right and wrong ways to go about establishing that life. Happiness as an older adult starts with the goals you set as a younger adult. It continues to develop as you consciously and intentionally move towards those goals.
Make choices. Opt for action. Don’t try to avoid the years ahead—you can’t. They’re coming whether you’re ready or not. Invest in them now, when it can still make a meaningful difference, so you’re not playing catch-up later.
Take your twenties seriously: You are crafting your life. Now here’s the best advice for your 20s.
Finding Work
To end up in a career you’re happy with down the road, you need to make difficult choices now—and the sooner you start, the better. Without purposeful planning, it’s easy to live day-by-day and put off the difficult tasks of making meaningful career choices. The following guidelines explore ways you can begin to craft a fulfilling work life.
Finding Love
We get much less information and training on how to find a long-term partner than we do on how to find a career. And yet, choosing a marriage partner arguably has a more lasting effect on your long-term happiness. Giving the topic serious thought now, in your twenties, will decrease the chances you’ll have to settle later. The following sections are some guidelines that can help you approach the subject mindfully.
Understanding Your Brain and Your Body
In your twenties, your brain and body are developing in remarkable ways specifically designed by evolution to prepare you for the rest of your adulthood. This process is unique to this period of your life, and it won’t continue as you age.
Understanding the opportunities and limits of your brain and your body during this decade can help you better anticipate and plan for the future. Some of the steps involved in this process are detailed in the following sections.
Advice for Your 20s: Exercises
These five exercises can help you stay on track and follow the advice for your 20s.
Exercise: Cultivate Weak Ties
Your weak ties are people with whom you share a distant or occasional connection. These are the people who are most likely to help move your career or love life forward, since they can introduce you to information, opportunities, and people you would not otherwise have had access to. A great way to approach a weak tie and open a connection is to ask for a small, interesting, specific, and easy-to-accomplish favor.
Think of two or three people you consider weak ties that could possibly provide you with an opportunity. An old roommate? A former professor? Your local council person?
For each of these people, think of a way you could open a connection. What specific, easily-resolved favor could you ask of them that could introduce you to new information or opportunities?

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Like what you just read? Read the rest of the world's best book summary and analysis of Meg Jay's "The Defining Decade" at Shortform .
Here's what you'll find in our full The Defining Decade summary :
- Why the twenties are your most important decade
- How you were fooled into thinking it was an extended period of youth and freedom
- Why you should use this decade to find personal and professional success