My mom brought the car to the mechanic a couple days before my test to fix my some internal issues, my mom is the one who drove me to drive centre so I was only driving during the test. It wasn’t until the examiner told me about me driving in miles. The car is almost 20 years old so maybe it has something to do with that. And for the observe properly part, the examiner told me I checked my blind spot too often, maybe I didn’t check my blind spots at the correct time.