Were it not for the angular Pluto, I would read this chart as the essence of "Midwest conventional" I grew up around: common sense, simple values, self-sufficient where possible and connected to neighbors where it works - generally hard-working, dutiful, always feeling you don't have quite enough but willing to figure things out with what you've got and a bit of help, loves trip-tip
But then... you've got this closely angular Pluto. Take that by itself, or add it to the Capricorn Sun, and you have someone who can't quite stand to live by other people's conventions. In fact, I suspect part of the reason you really liked the part you read about Capricorn is that you really don't
feel to yourself that you're part of the "standard mold" from which others are cast. You probably saw quite wicked words with Capricorn and Scorpio, and those sound like more fun. Your probably a decent guy, but you probably like better the idea that you're a bit wicked, an acting-out "bad boy."
This comes a lot from that need to be self-sufficient - to have your own autonomy. You're 21, and (with Saturn square its natal place), 21 feels like you're 30 and "all grown up," and you are indeed rounding the last corner of the track heading toward full adulthood... in another 7 or 8 years. But 21 is a big step in the process. You have a Capricorn Sun and a close Moon-Saturn square, so physical and emotional self-sufficiency are important to you. (We could spend a whole long discussion talking about parent issues and how those formative relations have shaped you, but, at the moment, I'm more inclined to keep eyes forward on where you're going.)
Take that autonomy need, and Pluto's not wanting to be packaged in other people's expectations and definitions, and you have is someone who tends to stay to himself quite a lot, is mixed on whether he wants to be left alone or be more connected to people, and has a lot of stuff to figure out.
This makes you not at all the "Midwest conventional" I first described, though you can pass for one. You are perhaps even a bit of a "local character."
One of the strongest places of activity in the chart - a place where you could swing either of a couple of ways (or find your own "third way" down the middle) - is in this issue of connection vs. disconnection. There are a lot on indications of distance, separation, and social disconnect in your chart, including the Capricorn Sun and Mars, Pluto angular, the "cut-off" side of Venus-Saturn, even Moon-Saturn. On the other hand, you have several indications of social ease: a Taurus Moon that needs it, an exact Moon-Venus square that is usually very connected to other people and smooth in interaction, easy-speaking of Mercury-Venus, etc.
Sex is a big deal (but may feel like a "normal deal," just "what's so"). Capricorn Sun is a horny goat, Taurus is all caught up in the intensity of sex and "life force" stuff, Moon-Mars is sexually needy. To this, you bring some magnetism, some soft charm, and some cold distance that mix with each other somehow.
In fact... that "mix somehow" is the key to how your relationships probably are. I don't know your early environment, your high school dating patterns, your sexual interests and preferences - just that you're 21 years old and have these higher-than-usual sexual pressures. But then, there's all the rest of the stuff I've mentioned - the distance or even aloofness, not wanting to get caught up in rules and expectations, etc.
The other side of Venus-Saturn is devotion - strong connection. You'll definitely want to settle down with someone and form a 'Til Death Do Us Part relationship. You have great compassion for duty, service, devotion, and caretaking of others that are important to you.
Go back and read the fine points in the links JSAD gave you, but especially the Capricorn Sun, Taurus Moon, Pluto angular, Venus-Saturn aspect, Moon-Venus and Moon-Saturn aspects... and then the others.
And, by all means, feel free to ask questions and to give feedback. I'm quite curious how your life has flowed out from this chart thus far.