I use to feel the same way before I started working at a larger Silicon Valley company as a software engineer. I graduated from a state school with a degree in Industrial Print Management and always felt like I was at a disadvantage because I didn't have a CS degree. Most of what I know about software engineering is self taught, I felt very self-conscious about this.

My performance did not match my perception and I was consistently outperforming my peers; getting recognition that I never felt I deserved. It turns out that practical experience is actually more valuable than academic experience. I would rather hire someone who's humble, driven, and ambitious but didn't go to CS school then someone who's none of those things but they have fancy degree.