I think I may subconsciously be behaving in a way that I don't think is good.
I'm not sure, but I might be acting in a way that I don't mean to without being fully aware of it.
ご質問ありがとうございます。
① "I think I may subconsciously be behaving in a way that I don't think is good."=「私は無意識に自分では良いと思わない仕方で振舞っているかもしれません。」
② "I'm not sure,"=「確信はありません、」
"but I might be acting in a way that I don't mean to"=「でも、自分では意図していない振る舞いをしているかもしれません」
"without being fully aware of it."=「完全には意識せずに。」
ご参考までに。