What are you waiting for? Go foster or adopt a kitty and notice how much better your life will be!
Should your cat sleep with you? It can be a hotly contested question among cat parents. Some say, "YES!" others say, "I love my kitty, but NOPE!" What camp are you in?
Being in a box can comfort a cat. Give your cat a box with a couple of entrance/exit holes cut in it and place the box in a corner or other out of the way space. Let the cat go in and out and enjoy the space at will. The four, small walls and the closed top of the box will help a stressed out cat find comfort and relief.