There is one thing you should know about yourself before you get into a relationship with another person: Are you an introvert or an extrovert?
This question is vitally important because, depending on the answer, it can make or break the relationship. Introverts process internally, and they need time to themselves throughout the day. Social settings tend to drain their energy. Extroverts process externally, often talking out what they think about. Alone time can be boring and energy draining, and they love being in crowds.
It does not matter whether your potential partner is the same as you; what matters is that you recognize which they are and which you are. Two introverts (or extroverts) can live a great life together. However, if you are an introvert, like me, and you happen to hit it off with an extrovert, like I did with my wife, life will take you down a wondrous journey. But the one thing that has kept our marriage together is understanding, and complimenting, the differences between us.