I occasionally browse the posts (usually around period time) and happened upon your question today.
I am 13 months post and like Jill feel about 90-95% better, depending on where I am in cycle.
Because of my age, 40, and the push toward menopause, I don't know if I will reach 100%, but I can hope. I am so much better than where I was a year ago right after removal AND a completely different person than when I had Mirena.
Periods that were non existent on Mirena are normal and almost predictable now.
My anxiety issues occur either right before my period when progesterone dives or due to blood Sugar fluctuations (exercise affects me too). However, they are not nearly as bad as with Mirena. I saw real improvement with this about month 6 post and noticed HUGE difference around month 8 post removal. On a scale of 1-10 they have been no more than a 4 or 5 (and this is rare), when last year I would say 8 to 10 and while on Mirena 12-15 :-). Taking St. John's Wort supplement really helped me a lot.
Insomnia is also only during days prior to cycle starting. I am told that this is part of perimenopause hormonal fluctuations, it usually accompanies or is followed by anxiety.
HANG IN THERE! Things get better with every cycle. Sometimes it can be frustrating to have a setback after much improvement, but your body will regain balance, little by little. I think that those of us who had the device longer take longer to heal (but not always), it just depends on many factors (age is one).
I never tried the cream, but I know many women swear by it.
GOOD LUCK! Keep posting this site was a GODSEND and the ladies here have helped me tremendously throughout.