1. Tell people what you want. And not just the people who can give it to you — like your boss or your significant other — but also your friends, your family, your colleagues. Knowing you have people rooting for you (or even better, people to prove wrong) can be hugely motivating.

2. Ask for what you want. If you want a bigger paycheck, ask for a raise or negotiate a higher salary. If you want your boyfriend to commit to having dinner with you one night a week, tell him rather than hoping he reads your mind. You might be surprised by the results when you just come out and ask for things.

3. Cut out the people who hold you back. If you have a friend who often makes you feel bad about yourself or always pushes you to drink more than you're comfortable with, even when you have a big presentation to give the next morning, hang out with her less or don't hang out with her at all. Spend more time with the people who support you and help you lead the healthy, focused lifestyle that will help you achieve your goals.

4. Know what to expect from people. Everyone has strengths and weaknesses. Take time understand a person's weaknesses over the course of your relationship and you won't take their transgressions personally. If you know one of your friends or employees is super-flaky but has other qualities that you adore (she makes you laugh harder than anyone, and is always there for you when you really need her), you won't be as upset when she randomly reschedules Saturday brunch on Friday night.

5. Save money. When you turn 30, you won't want to worry about how you'll ever afford a child, take a real vacation, or buy a home. Plan for the future and you'll not only be able to afford niceties here and there, you'll also have a safety net should the unexpected strike.

6. Allow yourself be impulsive every so often. If your friends invite you on a last-minute long-weekend mini-vacation in South Beach, or you're working late and your friend calls to tell you to hurry over to a fun party she's at, say yes every once in a while and go with an open mind. Half the fun will be knowing that you made the snap decision and rolled with it.

7. Keep your commitments. To your friends, your significant other, and to yourself. You'll end up with a lot less disappointment and fewer fights along the way.

8. Don't stick around for jobs or relationships that make you deeply unhappy. Not every relationship is full of fights and not every workplace is full of bosses who yell at their employees. Anything you spend a majority of your time doing should enhance your life, not bring you down.

9. Don't burn bridges. When you quit, do so with grace. You never know whose support you'll need down the line, and you won't want to regret acting angry or bitter when time passes and you stop caring about how someone or something got you down.

10. Move cities. Sometimes the only way to find the opportunity you really want is to move. Be fearless in the face of your own ambition, and don't let your location hold you back.

11. Be decisive. Indecision can be torturous not only to you, but also to the people who rely on you. Learn to trust your gut instincts and grow from experience, and don't be afraid to stick to what you believe is best.

12. Forgive people. Forgiveness isn't for the other person — it's for you. Even if you never tell someone to their face that you forgive them, knowing that you have will help you move on. Holding a grudge doesn't lead to happy, positive feelings.

13. Don't stress if your loved ones are safe and sound. The only thing in life worth truly stressing over is your loved ones being in danger. The next time you feel anxious because you're waiting to hear back about a job you interviewed for, or have to run 10 errands in two hours, or are running late for a flight, remind yourself that everything will work out and that stress is better saved for a truly distressing time.

14. Don't confuse your work with your life. The most important part of your life is the relationships you build with others. Even if you end up in a position where you have to work 80 hours a week, never lose sight of that.

Related:

18 Signs You're With the Man You Should Marry

The 31 Best Pieces of Career Advice for Young Women

10 Reasons You Didn't Get That Job

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Amy Odell
editor

Amy Odell is the former editor of Cosmopolitan.com. Chief amongst her interests are cats and Beyonce. She is a feminist (thank you for asking) and ex-fashion journalist. She is the author of the hilarious book of essays, Tales from the Back Row: An Outsider’s View From Inside the Fashion Industry.