Everything is an opportunity. I bet that if you handle this the right way, you can become a more musical player than ever before! I would start from the beginning and just a bit later with the easiest of the introductory repertoire. Allow your self the time to see the easiest examples so that your left hand can learn to compensate. Insist on making the music sound as perfect and professional as possible. Something very true for everyone: it really isn't what you can play, it is how you can play it. It is my sincere belief that two things will happen if you take this approach rather than trying to tackle current repertoire:
1. You will become a more musical player
2. You will advance much further.
Best of luck to you in what is a , no doubt, frustrating experience.
Dr. Todd Tipton, classical guitarist
Cincinnati, OH, USA (available via Skype)