Generally, moderation is the key. Avoid extremes in philosophy, politics, and religion. Seek balanced perspectives that allow for understanding, even if you disagree. Prioritize your goals and develop several alternate plans to achieve each goal -- the more goals you can achieve with one plan, the better off you'll be.
Speak less, act more. Reveal only those things about yourself that are absolutely necessary -- never volunteer personal information. Nobody needs to know everything about you, your goals, your interests, or your plans. If they know too much about you, they will use you to achieve their own goals, and then discard you when you've reached the end of your usefulness.
Learn new things every day, even if they are outside the boundaries of your interests. The more you know about something, the more able you will be to exploit its usefulness (this applies to people, too).
Study "The Prince" by Machiavelli. Study "The Art of War" by Sun Tsu. Study "The Holy Bible". The first tells you what to do, the second tells you how to do it, and they third tells you why it should be done. Read and re-read each one until their general principles become intuitive.
Take acting lessons. Take music lessons. Take cooking lessons. The first will give you practical knowledge of how to "fit in" with almost any social situation. The second gives you a talent that will attract admirers. The third will give you the means to feed guests in your home, whether it is a dozen for dinner, or just one for breakfast. 
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The mere fact that science may not yet adequately explain an object, event, or experience does not mean the immediate explanation should automatically default to a conspiratorial, extraterrestrial, paranormal, or supernatural cause.