Ignoring the first character (as we know what that is and ignoring it makes percentages nice) you are 68% correct.

I have modified Clues 3 & 4 in the OP as some research has shown me that this is too ambiguous.

Without giving any specific clues I would say that there are at least two cases where you have only used part of the information given. I think it's fair to say that all the information in every clue is important and if you have ignored anything then take another look and see if that lets get a more specific answer.

There is also at least one "silly" mistake related to case or something more obvious like that.

I'm going to sleep in an hour or so but I'm happy to give further comments on a revised version.

I'm wondering whether people should be able to PM me their attempts or whether the "penalty" for getting help is giving away information to others publicly? If you did PM me an attempt then any hints I gave would definitely be posted here publicly for fairness. What are people's thoughts on that?