Hi, and welcome to the group. I was diagnosed in March, so I am 2 months past where you are. I did not have surgery, but I have just over the last coule of weeks gotten to where I can eat most thing well. My jaw still gets tired from chewing, and my mouth does not open very far.
I lost a lot of strength and stamina. I have begun taking longer and longer walks to build back up.
It takes a while, give it time.