I'm writing because I'm at my wits end about my parents. I have always known that they were very controlling but I'm very upset because I just can't see it ever ending and I don't know what to do. I have posted a bit here under another name but have changed for this.
The situation is a bit odd: I'm in my late twenties, doing a PhD in a foreign country, so if I come back to Britain to see family and friends I have to stay with them. So I have a home in the country I study in but I?m very aware that it's only temporary as I don't have right of residence there. So my only permanent address is theirs. I don't have a partner or children (hope I'm allowed to ask advice here!) I am in theory financially independent as the university I am at pays my fees and a living stipend. It's not a lot of money though - not enough to save anything. I have about 18 months of the PhD left.
I cannot have a discussion with them about anything we disagree on without it descending into in emotional blackmail and a complete scene. I sometimes feel as if they are not satisfied until they have reduced me to tears. My father often shuts down discussion or tries to coerce me to do something he wants me to do by crying hysterically (examples: when I was at school he used to get absolutely hysterical and cry and cry and shout at me if I came home with the top button of my uniform shirt undone, because that was against school regulations; we also had a massive row when I was at university because he disapproved of one of my friends that I was planning to share a flat with - he kept phoning me up and telling me about how he offered up his life to God in place of me when I was seriously ill as a child and how could I do this to him?). None of these disagreements can ever end in any other way than me giving in. If my mum and I are having an argument (even in a trivial jokey kind of way) he tries to shut it down. It's as if it's not OK to express any kind of negative emotion, even if you're just letting off steam.
One other thing that worries me is that they have basically taken over all of my financial stuff in the UK. I have about 100,000 quid in various places and I have no idea where any of it is because they have all of the account information in their house and they manage my investments. If they died in a car crash tomorrow I would have no idea where any of it was. (I know they haven't run off with it - because they gave most of it to me. It is the lack of knowledge and lack of consultation from them which annoys me.) It also means I don?t have any financial privacy because they get all my statements, because they have to go to a UK address.
I am just wondering how they will behave when I have a job. I suspect they are going to want to control all of my financial stuff then too. For various reasons I haven't had a long term relationship as an adult. My heart even sinks a bit at the thought of meeting a bloke I really like because I know they will hate the thought of someone else having influence over me and there will probably be a scene.
I am also a Christian, which they are not. Last Christmas (which was my first Xmas since I converted) my mother pulled out every form of persuasion to get me not to go to worship on Christmas Day and eventually basically prevented me from leaving the house. I didn't even bother to try this year because I knew what the reaction would be. I never go to church when I am staying at their house because there is obvious disapproval.
I am so upset because I can never see this ending. I feel like they are going to try to run my whole life for me, for ever. I know that I am probably partially complicit in this in some way but I just don't know what to do. I am - sort of - an only child (only child of this marriage) so I have never had anyone to back me up. This evening I am expected to sit down with them, open up all of my foreign money affairs to them so they can see what I do with my money, and then they are going to write a timetable of my life for the next 12 months. 
Sorry this is so long but I don't want to drip feed. I feel awful for posting this because we have a very good relationship most of the time and I know this is not the worst it can get with parents. But I want this to stop before I am mid thirties with a partner and children!