If you do not mind being nerdy and/or unfashionable, and before it snows: you might try wearing socks and sandals or socks and flip-flops. You will not win any fashion prizes! But your feet will be warmer. When at home, you could wear socks in your slippers. When you must have one larger shoe, buy a pair of larger shoes and get something for the too-large shoe so that your uninjured foot will not slide around and become a liability. Stuff the toe of the shoe. Get the sticky heel inserts (and use them in other parts of the shoe, too, as needed.) A hook and loop closure sometimes allows you to fit a shoe firmly; this might help your uninjured foot. There are many other options.....
And I know this because I have been doing this footwear thang for months. You, too, will find what works for you.
Bach is not noise, Madam. (Robert, in Two's Company)