In addition to fears and strengths, another thing to consider when building a character is their goals, both short and long term. When creating a character, a good thing you should focus on is, what do they want out of life? All other goals, actions, reactions should then center around this thought. Short terms goals are 'what does your character want to achieve right now? How about in a day? A week? A month? Six months? A year? Not only that, but how does your character deal with the disappointment of not having a goal met? Do they throw a tantrum (literally or proverbially)? Do they get depressed? Do they reorganize their priorities accordingly and adapt? (Something that can be built on based on their psychological and emotional state.) Are there some goals that are more important than others? Which ones are they? So many people forget about setting goals for their characters to try and achieve, but it's so very important. I don't think it's something that should just be left out.