1) I wouldn't do it more than once a week at most, and it would be best to do it once a year on the saint's feast day.

2) Sure, but it's a very different structure with its own unique logic. It's not simply Cabala with a new paintjob.

3) That's when you have to use what you know in an original way. Choose a wise being you're used to working with, and ask to be shown the relevant symbol...