Anyway nomaddan , what DO you plan to do? I see no reason to give up and would only suggest you follow some advice and get rid of (return or re-home) the fish you have right now. Most LFSs will take them back in exchange for store credit. Then post for other stocking suggestions or research your own.
As I said before, there are SO many fish that would thrive in your tank and also be absolutely stunning to look at so do consider that. The fact that you asked about your tank, BTW, shows that you do care at least a little about your fish' welfare... so please don't be disheartened and do try to make the most of this wonderful and most rewarding hobby. 