I wasn't always a "loner" as most people would refer to introverts who prefer not to be particularly socially out-going or socially interactive, but ever since the beginning of high school, I've been this way. Now that I've graduated high school and will be going into University in the coming fall, I've really been thinking: is being a loner such a bad thing? The way I see it, the reason I'm a "loner" is because most of the people I interacted with in school were petty/not worth my time for joking around/not those who'd I'd really want to associate with. I'm not a rude person or a particularly socially awkward person as when needed, I can interact with other people in a social environment in an adept manner. I've also never really had any "real" friends during my tenure in high school, my "friends" have generally been acquaintances with whom I'd speak with occasionally in a relatively friendly manner. Now that high school is over, those acquaintances have essentially evaporated and I've finally realized that I'm actually alone. This doesn't alarm me or bother me in general, but I know that most people (including some psychologists apparently) consider this a negative thing.
I suppose what I want to ask is really this: should I be worried and should I try to be more social, especially going into University next year or do I have nothing to worry about?
All input is appreciated, so, thanks in advance.