I can't take this anymore!!!!!!!!!! thyroid problems- PLEASE answer?

So basically, i've got an under active thyroid and i've had it for over a year now and things have just got worse and worse. I've been to see over 30 different doctors on the NHS and none of them have helped me in the slightest, they don't even listen. I have so many symptoms- bad hair loss which has totally distressed me and upset me because my hair meant everything to me and now i have lost over a third of it, i have freezing cold hands and feet all the time, constipation, irregular periods, a swollen thyroid, and very bad insomnia and fatigue. I have been taking Levothyroxine for a year, it has never worked, never got rid of any of my symptoms except maybe my periods are a bit more regular but that's it. I'm on the right dose, 100mcg, my blood tests are normal all the time. Doctors don't listen when i tell them it doesn't work. I can't even explain how much this has destroyed my life, i haven't even left the house in months, i haven't been able to go school in 9 months. I have heard of a drug called Armour thyroid and a few weeks ago i was desperate to try it but no doctor will prescribe it to me because it's not licensed in the UK, the only way to get it is off the internet and at first my parents refused to buy it for me (i'm 16) and now i've found out that i have a low adrenal reserve so i don't even know how to treat that, the NHS have told me that they can't offer any treatment for me and i looked on the internet and just found these nutri adrenal supplements that you can take for them. But one private doctor i saw told me that ,if i decided to do that i would have to come off levothyroxine for 2 weeks, then go on the nutri adrenal things for 3 weeks (also not on any thyroxine) and then go on armour (if i can get it) after 5 weeks of being on no thyroxine because there could be a risk of getting thyrotoxicosis if i went straight on it. But i really can't do that. The last time i went off levothyroxine for 5 weeks i had that myexodema thing which is really severe hypothyroidism i think, and i'm scared my hair loss will get worse and i'll go bald and i'm scared my thyroid will get more swollen. I'm sorry this is so long, but i have no other place to turn to other than the internet, i've given up with the doctors, i've even seen a private one who didn't help. I've been asking questions on yahoo answers about my thyroid for months and i haven't really got an answer that helped so please answer. All of this has made me feel suicidal in the past. I'm so scared and worried because i know that my symptoms have got worse and will only get even worse unless i do something about it. But i don't know what. Thanks in advance.