Why am I hesitant/shy to get into a relationship?

You need to respect your feelings and listen to your gut. Things DO go wrong. There are a lot of reasons it may not work well as seen in the high rate of divorce. Are you being pressured by people ? It is possible you just do not want a relationship. As simple as that. There is nothing wrong with that so please feel good about yourself. You may be superior and independent. Good for you