How long have you been dancing? If it's less than 3-4 years, I'd recommend continuing your lessons, practice, competitions, etc. for while more before you make any career decisions about it. The better you dance, the better prepared you will be if you do decide to make a career change.
A wise man once told me, if I really loved something, NOT to make it my career. No matter how much you love it, a job is a job and gets tedious sometimes. Do you really want that to happen to dancing? Do you really want to spend much of your time going over basics with beginning dancers who are clumsy, can't hear the beat, develop annoying crushes on you, and/or drop out of dancing no matter how well you teach? All those things will happen. Will they affect your pleasure in dance?
You also need to think through the financial aspects. Beginning teachers usually make around $10 to $15 an hour in the US and it takes some time to build up a full-time teaching load. Check what they make in your area. Will that be enough to live on? Can you save money in your current job to tide you over until you start making more money as a teacher? Or do you have the business savvy to open your own studio at some point? Are you male or female? There is a bigger demand for male instructors than female, as more women go into dancing.
All I want to do is dance, too, but I would never make it my career. My dancing is for me. I don't want to dilute that with the demands of students, bosses, studio politics, financial pressures, etc.