Yes it will work but you need to be very careful doing all that because it will give you tmj problems. Just don't clench teeth or hard mewing and you are safe.

I already have tmj, I was diagnosed 8 years ago and my ent yelled at me for chewing gum too much, and I always ground down my top retainer. Nobody did anything to stop the grinding. My dentist said if I eat soft foods my mandible can actually change the angle it’s currently at, is that possible? 

Well if you want to avoid grinding teeth you must not clench teeth and while mewing you must not let your teeth come in contact just hold both of your jaws slightly apart around 1mm or 2mm that way your jaws will be resting while you are mewing also don't mew hard just do the natural tongue position and over time it will make you healthy and attractive.

Also are you from pakistan or what?

Hold a ROUND apple with both hands, chew evenly on each side and from the front, biting into it and feeling the compressive forces transmitting upwards into the maxilla. Watch bears eating salmon and primitive technology series to see how they chew naturally without the influence, interference of societal "manners", which may be unnatural . See Natural Chewing Exercises to prevent orthodontics. Beware: an orthodontist on this site is trying to make people think they will damage their faces by chewing apples and their eyesight and skin by eating carrots- nonsense.  Orthos don't want people to realize how to chew to align the forces optimally for prevention and correction of problems.  ALL ANIMALS KNOW HOW TO CHEW TO PREVENT ORTHO.