1. You Don't Like It
You might be snickering in front your computer screen at this one. If you don't like your job, wouldn't you just leave? You would think so, but a recent Gallup poll concluded that 71% of people are either "not engaged" or "actively disengaged" at work. Almost three-quarters of the workforce don't like their jobs. One thing in life that is extremely hard to remember is that if you don't like your job, you can always leave. No one is forcing you to stay.
Economic circumstances might make your current job the best option avaiable, but savings, night classes, or diving head-first into a hobby can chip away at that bit by bit, and eventually, you can get out of it. Though we live in a free country, leaving a job is often an incredibly difficult proposition. Our job makes us feel safe in an uncertain world. In the U.S., your very well-being is tied to your job. As a result, many workers cling to less than ideal jobs with benefits and 401Ks far longer than they should. The earnings gap between your current job and your dream job might be pretty steep, but sometimes you have to sacrifice a piece of your paycheck for peace of mind. You only go around once and there is no reason to spend that time doing something you don't like doing ... even if the thing you don't like could help you put a down payment on a nice boat.