I'm just gonna come out and say it how it is. 2.3k or any exp from retail won't get you anywhere near good partners on this server, except if you're randomly lucky enough to find another who's in the same situation (who actually is good, which is rare).
Now the season just started yday, but getting 2k in SQ is rather easy if you are an average player. wait a few days and just queue and ask someone if they wanna duo, if you are teamed up with someone decent.
I came here a little over a month ago, and struggled to break 2k the first week. 2 days ago i broke 2700. So just keep queuing and adjust to the patch and you will get there soon enough, if you're actually decent. If you're having issues in certain situations, go watch replays of the top players of your class. In case you don't know how to, each character on armory (on top of this very site) has a pane called "match history" which has all the match-id's of matches they played. go ingame and type .replay "matchID" and learn.