My Invisalign Didnt Work After Completing 23 Trays, What Went Wrong? (photo)

The overbite you are talking about sounds like what we in the biz call buccal overjet (which you can see a bit in the picture on your right side). This is partly an arch coordination issue (top arch not fitting the bottom) and partly that your left side is still a bit Class II and the top teeth there need to be move back a bit to fit better.

The cross elastics and aligners aren't going to do the trick. Though it is a little tough to tell from one photo alone, you probably need to finish up with braces and potentially an additional appliance to fix the class II problem on your left side.

Braces are really your best bet at coordinating your arches and fixing your bite at this point, since there are likely movements required in fixing your bite that Invisalign won't be able to achieve efficiently.

I would hesitate to say that Invisalign didn't work at all. It may have been able to do about 80% of the work, but just won't get you all the way there. The tooth movements on the ClinCheck don't really obey the laws of physics many times and sometimes teeth don't move as well as some would like from time to time.

Ask your dentist if he thinks a "mid-course correction" could be used to complete your case to your liking. The dentist has to be very specific in his instructions to Invisalign that he wants the overjet completely corrected.
 

Not knowing what you looked like when you started, it is hard to say how successful Invisalign has been.  The fact is that 23 aligners is typically around 1year of treatment and many difficult orthodontic overbite cases often take significantly longer to fix even with regular braces.

It is not unusual that additional aligners are needed near the end of complex Invisalign treatment....ask your doc exactly how he/she plans to finish your case befor worrying any further!