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I've been making so many mistakes I'm about to delete my account in disgrace D:
NO! No, no no. Don't do that. If roleplaying is something you really enjoy, then don't go deleting your account. There's just a lot of etiquette and rules that go along with roleplaying. And it's really important that you take the time to learn them before jumping into a big game, and this is a big game. We have a lot of people in it. It takes practice and experience to learn how to better incorporate your character into the world you're trying to get into.
You'll get there. It just takes time and practice and unfortunately, this is a game with a lot of well experienced and literate roleplayers. It's just, we know the rules and the ways things should go and are quick to point them out.