If you calmly look at the reply you sent to an email, you'll find that it'll have "you" all over it. While you may use the pretext that you're just working with whatever information the addressee gave you, in the end it's just all about yourself. This is
自分の返信したメールを冷静に見てみると、自分のことばっかりだ。相手が与えてくれた食いつきどころもそれを出しにして結局自分のことだ。これではいかんな。もう少し気をつけよう。