Review about Mirena

I am a 21 year old woman with no children and I've had the mirena for about one and a half years, after 4 years of taking the pill. The insertion was okay, it was painful but soon over. Then had spotting and cramps for about 3 weeks which then disappeared. Following that I had light periods every month and after 9 months it got less. Unfortunately I've had terrible difficulties with the side effects. My libido has completely disappeared, I am irritable and have massive mood swings , up to having suicidal thoughts. which I've never had before. But I still think it's a good contraceptive and if the side effects hadn't been so bad I probably would have kept it.