Does the sight of your cubicle make you cranky every morning? Do you immediately get anxious the minute your BlackBerry pings to notify you of a new email? If you're constantly feeling critical, impatient, or just plain mean, don't pass it off as a temporary slump. Feelings of career dissatisfaction during your mid-30s aren't uncommon; in fact, anxiety over career and work is becoming the new norm for millennial women.According to research MicKinsey & Company, more and more young, ambitious women are falling off the corporate ladder due to unrealistic expectations of success. Today, women hold 53 percent of corporate entry-level jobs. This number drops to 37 percent at the mid-management level, and falls further - to 26 percent - for vice presidents and senior managers. What's more, men are twice as likely to advance to each career transition stage. So why are women burning out so early?According to Captivate Network, men are more likely than women to do things that contribute to their personal well-being, thus reducing the chances of a fast flameout. For example, men are 25 percent more likely to take regular breaks throughout their workday for personal activities; they’re 7 percent more likely to get up from their desk and take a walk; and 5 percent more likely to go out for lunch. Our inability to relax is further aggravated unrealistic expectations of full-time employment. It doesn't take long for the day-to-day drudgery of professional life to become unbearable. For many women, the only real solution is to revisit their understanding of success and redefine their career goals. Instead of turning to therapists and prescription medicines, millennial women need to understand what's causing their burnout and come up with more attainable measures of fulfillment.What's causing your burnout?Worried that your career is about to go up in flames? It could be because you're playing someone else's rules. Here are five common causes of early-career burnout, and how you can avoid them...1) You're doing exactly what your parents told you to doWe all secretly want to please our parents and make them proud. Unfortunately, this nagging desire to measure up to others’ expectations can often cause you to follow a career path that's not right for you. If you went to law school in order to please your mother (or your mentor, or your significant other), don't be surprised when you burnout three months after taking the bar exam. Your loved ones probably had your best intentions in mind when they pushed you to be successful, but these dreams were also based on their assessments of life and work – not yours. While varied perspectives are useful, they might not be what's best for you. If you blindly follow the advice of others, you'll likely end up in someone else's dream career.2) Your identity is tied to your degreeA degree in finance does not limit you to a career in finance. If you're under the impression that whatever you studied in university dictates what you're going to do for the rest of your life, you're wrong. Your education is a foundation for your future, not a requirement. Use your knowledge to help you build in new directions in order to avoid burnout and stay interested in your chosen field.3) You're working hard for someone elseWhen you work had for something you believe in, it's called passion. When you work hard for something you don't, it's called stress. Granted, it's not a bad thing to want to work hard to impress your boss or co-workers, but if that's the only reason you get up in the morning, you're going to burnout. Going to work isn't enough; you need to understand why you're working in the first place – what your role is, and what you're getting out of your contributions. 4) You're working for the money, title, or statusSeems like an obvious mistake, but it's one that's made far too often. If you choose a career based on these parameters alone, you will eventually burnout. It's not a sustainable situation. And while you might assume that quitting is your only option, it's not. Take some time to reflect on the root cause of your stress. There may be the opportunity to make changes within your current position or company in order to reignite your passion and career.5) You're doing exactly what your boss is telling youYes, you need to measure up to your boss's expectations. However, this doesn't mean that you need to follow his or her rules to a tee. If you follow too closely, you'll find your days are set to measure up to someone else's expectations and goals. The best employees are able to think outside the box and contribute in unique and innovative ways. Not surprisingly, these are the employees that report the highest level of job satisfaction…and the lowest levels of stress.You've got a lot to gainunderstanding the paths to burnout, you'll not only reap the benefits of a better understanding of self, but you'll also have the freedom to live your career on your own terms. Your relationships will be stronger, your health will be better, and your self-worth will increase exponentially.