The rookie began the campaign as the NFC East side's third-string quarterback, but a hamstring injury for Michael Vick and concussion for Nick Foles forced him onto the field for his first regular season action against the Dallas Cowboys last week.
The 23-year-old told reporters: "I believe that your approach to each game shouldn't change based off of how you play and whether you win or lose, because the mistakes that you have to correct are there in either situation. That's my mentality this week. I'm preparing as if I am the starter.
"I know what I can do in this league. I learned from those throws, especially being in a clutch situation like that. It hurts and it's really disappointing on those interceptions to watch yourself throw those because you know you're capable of so much more.
"I felt like I made a lot of good decisions except for a couple of plays that cost us. In this league you can't let a couple of slips bring you down."
The Eagles face the New York Giants on Sunday.