By the remarks on your photo, I must assume that you visit a lot of the "let's find reasons hate ourselves"-forums(that's what I call them) or have a slight case of BDD.
The truth is that your jaw might look somewhat recessed, but nothing out of the ordinary. And honestly, you really should only trust a qualified max fac surgeon on this subject, not delusional the BDDers that roam these forums. You need a proper xray or ct 3d scan to make any meaningful judgements(yes, they are pricey, but necessary).
That being said, I definitely would never listen to any orthodontist as they really only want to sell you their services and nothing else. What they do is make your teeth fit your jaw and look straight, even if you'd be better off fixing your jaw first.
tldr: Get off the Internet and look up a good jaw surgeon.