After coming out I moved into a flat, this is where I learned to walk in heels & possibly why i'm very steady on heels because I had laminated floors throughout, this is possibly the slipperiest surface i've walked on & it forced me to find a good balance quickly.
If you have any slippery floors in your place then practice walking on that surface & practice turning, at first I was great in a straight line but would often skid when turning the corner into my bedroom, i'm sure that learning how to corner on slippery floors has saved me from public falls/slips more then a few times.
When you do venture outside in your heels I advise a short trip only as walking on uneven pavements seems to tire my legs & feet quicker.
If your shoes feel tight at the toes then try to avoid walking down steep hills, Bristol is very hilly & by the time i've walked down my local hill in one pair that are snug my toes are starting to suffer.
If you are uncertain about your balance then try wedges, they are very, very comfy as they spread your weight evenly, I wore my best pair to the GIC in London late last year & after being on my feet for 8 - 10 hrs that day my feet felt fine.
Final piece of advice for now is, avoid cobblestones & watch out for potholes!!