Have you ever stopped to think how much you gain with this ? As much as you get closer to what is unknown, the richer is your possibility of change and learning. Establish a compromise of exercise the acceptance of the different; be someone, be a food, be a scent.
The untolerance brings risks to our helath. You get bored easily and never relax. Bad mood is not good to anyone. Stress and tension are among the bad things which you can avoid, or at least control. Remember: a good smile is always the key to approach you to people.
Get to know life and the other's need is also a way to know the world and to grow. Haven't you heard that the best is having open doors everywhere ? Adventure yourself. Invist in self-knowledge and in a relationship with more pleasure with life. The personal growing will be inevitable.