Twenty-first century, first-world problem: the back camera of your iPhone has more megapixels than the front one, so selfies aren't quite as high-rez as one might like.
Oh sure, you can try flipping your phone around, sticking our your arm, and just wildly clicking the side shutter button in the vague hope that your aim is true. Good luck with that, bud. No way are you gonna get a shot that's well-aligned enough to garner any respectable number of Instagram likes.
The solution is, luckily, simple. Might it involve asking someone else to take the photo for you? No way, José! Forget interfacing with another human being; download the free SelfieX app and let your iPhone line up the perfect selfie shot. It'll detect when your face is in the frames, then help you make little adjustments to the angle by giving you specific directional instructions.
Voilà! The perfect, high-resolution selfie, every time. You're going to have to find something else to complain about.