Minny, first of all, I am really sorry that you are feeling this low. I am also very sorry to hear about the years of problems you have been having that sound hormone related. The clue is how low you feel before a period which indicates you need oestrogen, badly, and particularly in the lead up to a period. I think Professor Studd is the best person to help you and I would recommend you make an appointment to see him if you can afford it, this is his area of expertise and he is the best in the UK for this.
I use Oestrogel and Utrogestan but I can't use very much Utrogestan because I am very severely intolerant to all synthetic progesterone and to Utrogestan taken in large quantities. I only take 7 x 100mg vaginally every 5 weeks (just changed from 4 weeks) and my gynaecologist gave me the OK on that and said, and I quote "if it works, for god's sake stick with it" because she knows my history. I would not be able to take anything like the amount of Utrogestan you take because it would cause low mood leading to a silent migraine.
Despite anything you might read to the contrary, Utrogestan builds up in your system and remains active for far longer than it says on the packet. The longer you take it, the worse the side effects will be. My advice to all women who suffer bad side effects from Utrogestan is to take a lower dose for a few months and then have a scan to check the womb lining. This is the only way to know how much Utrogestan you need, you cannot possibly guess and the NHS guidelines are a "one side fits all" policy but you might be like me and not need anywhere near that amount (about 100mg for 12 days I think) or you might be unlucky and need more the thing is, find out. It is impossible for every single woman to need exactly the same amount of Utrogestan and there is no way Professor Studd would prescribe this amount of Utrogestan for a woman like yourself.
One other thought, you might be better switching to Oestrogel because you can split the dose more easily and take 1 pump every 12 hours, it might help because it sounds like you are in need of a very steady and constant dose of oestrogen. I certainly wouldn't ever go back to patches - I didn't find they ever stuck well or delivered enough oestrogen.
I would not recommend you try a Mirena coil either with your history of depression.
I found it very distressing to read your post. Professor Studd has been trying to educate doctors on hormones for years but it still hasn't got through to GP level.
