Dancing by yourself, or with a partner, ..either way you'll need a large mirror.
You wouldn't do a makeup without a mirror. You wouldn't tie a tie without a mirror. When looks matter, you will use a mirror.
Serious athletes use mirror (or video) to check their forms and how the moves look. When you match your physical sensation and objective positions of your body parts, that is the start point for building correct form.
If you want to look good dancing, buy a large mirror. That's a start.
You can buy dress or shoes later.
... above was a thought I had at a dance party last weekend.
[you need a mirror that tells you the truth, not some alternative facts]
