A thing that we all have to consider is that we've all been beginners once, it really does not matter. Throughout my entire academic career (bachelor + master in CS) I've met my fair share of brilliant people that still struggled with concepts that to me looked very simple and straightforward, and I've also struggled with stuff that others find very easy and natural. It really does not matter, you always learn something new and the things that we didn't know yesterday can turn into the things we know best tomorrow simply because we keep evolving and bettering ourselves.
Just because somebody had a hard time grasping Object Oriented Programming (which, really, is not as useful anymore. Plenty of brilliant developers moved past it) in school does not mean that he'd not be a good fit for a demanding company a few years later.
This is true for everybody, by the way, just because you feel like you're struggling on some concepts, don't dismiss yourselves. Try applying at some companies that might be 'out of your league' and you will realize that maybe some of them actually aren't that out there after all.
Just because somebody had a hard time grasping Object Oriented Programming (which, really, is not as useful anymore. Plenty of brilliant developers moved past it) in school does not mean that he'd not be a good fit for a demanding company a few years later.
This is true for everybody, by the way, just because you feel like you're struggling on some concepts, don't dismiss yourselves. Try applying at some companies that might be 'out of your league' and you will realize that maybe some of them actually aren't that out there after all.