By the way, for anyone that doesn't know, if you're in hiragana typing mode, you can switch to katakana by pressing alt+caps lock (in Japanese Windows IME), for some it might be ctrl+caps lock.
Out of personal preference, I don't like to use personal pronouns when using Japanese.
I find being impersonal a bit more polite.
So I like to use こち ]kochi (lit. here) or I'll just omit the pronoun completely if possible.
For example, in a situation when another player has finished preparing and says:
準備はできている -じゅんびはできている - junbi ha dekiteiru - preparations are finished/I'm done preparing (colloquial).
I would respond with something like:
こっちのほうもう - kocchi no hou mou - Me too (colloquial, literally "on my side as well")