Sometimes we imagine the absolute worst about ourselves and our lives. In fact, under such kind of thinking we might inadvertently create it. Astrology has a very interesting answer to this, if we look at the qualities of zodiac signs.
Six months opposite your birthday is your opposite sign, which in many ways, symbolizes a lifestyle complete with its own philosophical outlook and belief system that diametrically opposes your own.
When life presents difficult circumstances, people have the choice of either dealing with it or looking for some form of escape. If the resources they are aware of within their own zodiac sign fail to provide them with the answers they need there is a natural tendency for them to seek escape through wishing for any extreme opposite set of circumstances, not realizing that this throws them into the diametrically opposite zodiac sign, which will not hold their eventual answer.
What in fact happens, may come as a shock to most escapists, because when individuals try to hide from life in the sign opposing their birth, they get to experience the very worst of that sign. Instead of it being a haven for them, it becomes a veritable torture which eventually forces them back to their natural self.
It is exactly this phenomenon that makes people "their own worst enemy," while explaining astrologically why some people at times act exactly opposite their sign.
Consider an Aries who cannot seem to get their way. They try to act out their opposite sign Libra as if using this different approach to life will somehow solve their problems. Acting as Libra they try to make compromises (which is against their Mars nature). In fact, the worst problem for Aries is their notoriously bad judgement when it comes to partnerships, coming from their experiencing the very worst of Libra their opposite sign, which in and of itself is known for very excellent partnerships.
Think of Taurus which is such a social, warm and loving sign ruled by the planet Venus. When the circumstances of life give less than the kind fairness they expect, they tend to shy away from others and go into silent periods, where they are literally dying to integrate with others, but won't because they are stubbornly trying to prove some point.
This is the very worst of Scorpio, their opposite sign, which causes them to isolate themselves from the very warmth and generous cooperation they need from others. Also, think of where the seemingly Taurus temper really comes from. Remember, this is a Venus or love-ruled sign, yet Scorpio, its opposite is ruled by Mars and Pluto two of the most difficult and violent planets in the zodiac. So, here too, we can see that trying to find haven in one's opposite sign is not really the best answer during difficult times.
Then what is the solution to desperateness in any individual. It is of course not only to stay in the sign they were karmically born into, but to aspire to the very highest qualities of that sign and therein find the answer that lifts them above their problems and sets them on their course again.
For Aries, it is always self-esteem and the actions that bring it about. For Taurus it is the the venus-ruled qualities of patience and tolerance. In fact, for every sign, the answer to almost any difficult situation in life is to not be your own worst enemy, but rather to avoid the desperateness that brings this about, and hold fast to the origin of your own original cause, until it blossoms to fruition.