How do you get rid of jaw stiffness?

Can’t open my mouth (as in my teeth) more than half an inch. I don’t have anymore pain (didn’t wake up with any this morning, but I am still taking ibuprofen for swelling). I am one week post-op from getting my wisdom teeth out.

1) How do I be able to open my mouth again, or what can I do to help that

and

2) WHEN CAN I EAT NORMAL FOOD??? I KEEP SEEING SO MANY DIFFERENT ANSWERS FOR THIS. I am SICK of Applesauce and pudding and yogurt!!! Please I just want some chicken nuggies.

Also 3) when do I need to stop worrying about dry socket? I keep seeing different answers on this too. Some say a week some say longer.