Others will probably see you as reserved and serious most of the time. One word others will use to describe you is ôresponsible". You might even be perceived by others as somewhat of a "wet blanket" because you're so busy planning and working towards achieving your goals that you give off the impression of someone who is a bit dry or all work and no play.
You are quietly ambitious, climbing the ladder of success one rung at a time. You may have invented the word "willpower".
You may approach your love life as a business. This can be a good thing in some respects. For example, in a relationship you will carefully construct a framework and take the time to be sure that your love is built on something solid. Sex is serious business to you as well. Just remember that dating is meant to be fun. Lighten up!