Would my boss, and co workers have a reason to lie about my performance?

I started working at McDonald's a week ago. We got slammed today. I was making a lot of mistakes, and was just slow, and overwhelmed. My boss seemed frustrated. I pulled him aside, and apologized. I said that I know im slow, and I just get overwhelmed easily. He said not to apologize and that he doesn't expect anymore from someone as new as I am, and that when I feel overwhelmed, to just let him know. After my shift, i was just like "im glad I could provide the help I did" because they let me go home early, because I wasn't even supposed to work today. My boss was like "you did an excellent job today!". My court worker who rarely compliments me said that I did a really good job today. I don't know, like I said, I feel like I just completely suck at my job, and like they are just bull shitting me.

Would my boss, and co workers have a reason to lie about my performance?
Post Opinion