Well, I can tell you that I'm about to enter my second cycle off the IUD, and I'm still trying to get some balance. Actually, while estrogen isn't high in my cycle, I feel great! Estrogen triggers release of copper from what I read. I keep up with the zinc, still at least 100mg a day but my zinc taste test says I'm just about sufficient. That drops during an estrogen surge of course, as does my energy, patience, etc.... But otherwise I'm feeling SOOOOO much better!
But yes, I have barely fought with my husband like I did for a large chunk of time, as well as yell at the little one having absolutely no patience. My PMS week was hard, I had a bit of nausea and headaches, but I wasn't completely incapacitated like I was on the IUD.
I hated giving mine up too. I would say to get the zinc taste test from a vitamin shoppe, get a few different mg sizes of zinc chelate form (perhaps a 15, a 30, and a 50), also some B6 since they work together and have similar functions in the brain, and also get some molybdenum. http://www.diagnose-me.com/treat/T34560.html
has a good resource on zinc supplementation. The molybdenum acts as an antagonist to copper. I've been trying to take 2 150mg with every meal, but usually forget. This is only while you're getting rid of copper, I wouldn't take that much for life. You may or may not also need a zinc/Copper chelate form supplement, because even though you may be high in copper, it may be in the unusable, biounavailable form, ironically. You have a ton of copper your body can't use LOL Ugh. I haven't tried that yet because the concept of putting more copper in my body scares me, but I figured maybe I'll try once a week next cycle.
I will warn you that as your body starts to rid of copper, you may feel more fatigued, perhaps with periods of energy then heavy fatigue, as well as some lower back pain where the kidneys (or maybe adrenals) are. I had that, but it eventually went away. The link I provided mentions the zinc/fatigue issue and how to get around it, that's why I recommended the different sizes. Also, you can take zinc before bed to get a GREAT night's sleep (I've never slept in over 10 years like I have taking zinc before bed.)
It's a slow process without the IUD, so it may be even slower for you, but hell, it's worth a try before you have to chuck it!
I'm trying to learn the FAM method now since I won't do pills, hubby balks at condoms, and spermicide sends me to hell in a handbasket. I have to get refitted for my diaphragm and got the contragel green which doesn't bother me thank goodness, but after reading about my own fertile days, I don't trust the diaphragm LOL!! Maybe at the beginning of the cycle, but certainly not in the really fertile time! Yikes! But pretty much with my biochemistry, I don't have much of a choice... Good luck!!