Capricorn

Capricorn is a studious and sometimes know-it-all sign, tending to be a pessimist and always seeking new knowledge and goals, as well as being poor at personal connections. In the third house, where it occurs for me, it affects study and intellect. A third house Capricorn is introverted, overthinks, and often gets so caught up in planning and making goals that they aren't actually moving forward. Which honestly describes me pretty well XD

So, this character is a bit over the top and puts a lot of thought into looking ready to conquer their goals, not really realizing that they spent so much time preparing for how things would go once they succeed that they forgot to actually do the necessary steps to make it happen.