need some advise on wearing heels

hey everyone my names lianne, im 19.
my injury is c7 – complete and do spasm quite often
im 19 and need to start wearing heels again, i have so many pairs of stilleto heels :(

The main problem is keeping heels on, they slip off within seconds
Another problem is how do you keep your feet straight when you have heels on? hard to explain but my feet fall to the side (if that makes sence) at my ankle. Any advice would be really good to hear. thank you.
Hope this pic helps show what i mean about my feet falling to the side…..

[attachment=0:z77gn2ac]6112017416_04802e7a57_b.jpg[/attachment:z77gn2ac]