I see in a reply of yours that you're interested in salsa dancing. By far the most important factor in getting better is to quickly achieve a level of competency that makes salsa socials really fun. I don't think I've gone more than 7 days in the last 2.5 years without attending a salsa social, and this has been the biggest factor in my improvement.

You may already be at this stage since you said you enjoy dancing, but if not I suggest you learn the basics from a friend or a class (I would spend no more than 10 hours on this stage), and then force yourself to attend a bunch of salsa socials, until you start really enjoying the experience.

Once you've reached this stage, you've solved the motivation problem, and now you can optimize towards becoming a really good dancer (if you even want to at this point - it's not necessary to reap the majority of the benefits).