When the flower emerges then turns down, it's usually only a couple of days till you see the first bananas. If you look super closely, you may actually see them now
Hopefully you're in a warm place and you should see them quickly.
We're very happy for you and your plant. When all the bananas are showing (usually a month from now), post a picture and someone will tell you what kind of banana plant you are growing.
Good Luck and Congrads