There is a few things you need to do.
I'am an olympic Weightlifting coach and believe me I know what I am talking about. And I know how frustrating it can be.
Do not get into the trap of using the cross armed way. This can cause more trouble than it's worth.
Do not have the bar sitting on the wind pipe. Charles Poliquin say's you should feel like you are choking. He is dead wrong.
Your elbows have to remain high at all times.
You sit the bar across the adams apple so that you can breath.
How do you get such positions.
Well one way you need to stretch the hell out of your wrists, triceps and your lats. Stand behind the bar when you have it in the racks and place it in the position you would for a back squat.
Grab the bar with a little wider grip than your shoulders and get into the position as you would back squat and without moving the weight slowly bring your elbows round and in front as high as they can go. Bring the hands in closer as you get more supple. Do not move the weight. Pile some plates on the bar.
One important thing you need to do is make sure when you get ready to Front Squat, that when you step under the bar and set your grip, lift the bar up with a small shrugging action and this will bring you into the position of keeping the bar at your adams apple. Keep it on the front deltoids.
If you feel the bar slipping down when you are doing the movement tweak your elbows in towards each other and upwards.
Hope this helps.