... I think I need advice on how to be less anti-social.
I switched over from CRPGs to actual RP fairly recently. Trying to unlearn all my bad habits from years of playing against scripted computers was hard. Heck, I wouldn't be able to answer that question, since I've been disconnected from reality (aka sapient people who have real feelings and are actually able to think with a certain level of smartness).
Once, during RP, my PC (and her PC boyfriend) had helped taken out some monsters, and were on their way to claim their reward from a DMPC who amounts to a Queen. The NPC (leading them to the DMPC) starts to talk about the history of the place, and my PC starts screaming, freaking out and asks him to shut up (I thought it was a natural response...). For this, a bunch of people stared at my PC, and the NPC stays awkwardly silent for the rest of the trip to the DMPC.
I decided to take a timeout, and let the boyfriend's player talk to the DMPC to claim their reward while my PC just stays silent.
I am not a mature person.
... what sort of game (system) would be best for me, by the way?
Spoiler: This is how I feel when I play an actual roleplaying game, as opposed to a CRPG
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I probably should write my own stories, instead of trying to roleplay with other people.