I second
@Well Rounded. The feeling of "freedom to perform" comes as a natural result of technical confidence. Once you can trust your feet to do more or less the right thing without your thinking consciously about it, it will seem like no big deal to start exploring and expressing the emotion of the music.
It took me a lot longer to get there--maybe three years or so--but I also practiced a lot less often. So in sheer hours spent, it was probably similar: about 250 hours.
Not sure if you ever feel this way but sometimes when I dance, I think I am doing really well, until I see myself in the mirror ...

Then I get self-conscious of others seeing how bad I am and it all goes down hill...
Ha! I still feel that way on a regular basis, after six years with the sport. I have two pieces of advice for that.
First, keep reminding yourself is that
"good" is relative.
You know what "great" looks like, you are deliberately trying to produce that look, and are disappointed that you can't (yet). But think of the huge number of people who have never danced a step in their lives. They watch you, and can only marvel at how elegantly you move.
If you look back at yourself in a year's time, you'll be AMAZED at the difference. You would
kill, right now, to look the way you will in a year's time, I can guarantee. When that day comes, you likely still won't be delighted with how you look...but, again, that's because your perspective keeps changing.
Second,
don't worry so much about the look. Focus on the
feeling. Even mediocre-looking dancing can feel absolutely wonderful!