I need some advice

I had applied for an internal job posting at my corp a few weeks ago. Did a written test. Got the news today that I didn’t make the cut cause I got 3 out of 15 questions wrong.

I’m fully aware I could have done better. Maybe I went in fully cocked and tried to blitz through in record time. Now I gotta wait a few more months to try again, or maybe another post.

I feel like shit. Tips to get over this?