I too have a head that is oblong rather than round and I have found the more high end giros like the ionos and atmos to fit much better. Of course the proof of the pudding is in how it protects your head. Two major falls with head trauma, much less severa than it could have been thanks to the helmet, later, I can attest to the value of a good fitting helmet. I could use a break in the expense of having had to buy two helmets in two months, but each time it was the first thing I did as soon as I got home from the emergency room.
I hope you find one that fits and that yoyu learn to take pride in your new look.
I used to take my first cracked helmet and a raw egg around to school classes and give a safety lesson on why they should wear a helmet. Drop an egg from three feet and then point out that that is what would happen to their brain, then show them the cracked helmet and explain why I was till up and walkking and able to communicate.
marni