Blame the old you, but not the new one who is now trying to fix it. Set yourself smaller, incremental targets and goals -- the key is to be going in the right direction. If you find you have bad mood swings when you are getting better control, and they don't lift even when you have your BGs more steady, then do see a doctor about it -- there may be other things going on. Try to get onto a DAFNE course - it may give you the extra boost to recharge your batteries, try a new game plan, and you may also meet other diabetics who can help.
Most of all -- don't give up. You're trying to confront your problems and reverse things and that takes real guts. Even if you can't reverse much of the damage, you can stop the downward momentum, and regain the sense that YOU are the one calling the shots, not the diabetes.
I'm sure you can do it -- the best of luck with it. :thumbup: