I failed my theory test because I kept mixing up the round signs and the triangular ones.

How to say “I failed my theory test because I kept mixing up the round signs and the triangular ones.” in Japanese

In Japanese

学科試験(がっかしけん)に落(お)ちたの、丸(まる)い標識(ひょうしき)と三角(さんかく)の標識(ひょうしき)をずっとごっちゃにしてたせいなんだ。

Gakka shiken ni ochita no, marui hyōshiki to sankaku no hyōshiki o zutto gotcha ni shiteta sei nan da.

I failed my theory test because I kept mixing up the round signs and the triangular ones. in other languages