South Congress area a big hang out area too; Continental Club, Gueros, lots within a short walk down there.
Hula Hut is a solid pick. Good Tex-Mex, Great happy hour scene. Mozart's for coffee right by there too. Both are on the water and seriously cool.
If you want sushi + scene do Uchi on S Lamar, if you want high end + scene do Wink on N Lamar, if you want cool late night check out Magnolia Cafe or Kerby Lane cafe (late night as in after the clubs close)...do the hike n bike trail, the Dell Diamond for minor league baseball & if you golf there are good courses all over.
E 6th has gotten to be like Burbon St. In NOLA. It is mostly very young people & tourists (maybe you are only 23 I have no idea).
The warehouse district & S. Congress are older & cooler. But the whole area between 2nd & 7th has developed tremendously in the last decade.
If you want to know the best dance clubs ask around at a place like Uchi or Hula Hut. That would be a great conversation starter. More a live music club/bar town than a dance club town. Always been that way.
Grab a copy of the Chronicle or check it out online (the free weekly rag). You'll get all the live music listings there, it's a go to resource.