"I kept thinking that I don’t belong or I shouldn’t get too involved with spreading my doubts."
There are lots of people here who feel like you do. You should write a detailed story about yourself on the forum. I did and I felt much better actually.
"Never felt I belonged to any culture fully, Desi culture was foreign to me"
Totally the same for me.
"Throughout the years, I kept feeling that more and more stuff kept being asked of you. You have to do more, it’s not enough, and you need to do this and that and then the other."
I have a similar problem. I know if I ever returned home there would be a mountain of pressure for me to get married. I don't want to be married to a muslim girl (actually I don't want to be married - I don't see why people can't just be partners if they prefer it that way). I would be expected to pray/read jumma/fast etc. I would be expected to waste thousands of pounds for my Umrah/Hajj (and maybe pay for other people's as well). I would have to sit and listen to everyone constantly praising Allah every other sentence (that would drive me mad). And many other 'responsibilities'.
So yes. Family put incredible pressure on people like us. Some people think that family are being selfless when they pressure you with these things. I think with my family there is some truth in that (my mother once said to me that I should get married and have children quickely otherwise I'll be an old man by the time my kids are 20 and I won't have the strength to look after them) but I also definately think there is a lot of selfishness (I've lost track of the number of times my old man has said how embarassing this/that will be for the family if I don't do this/that).
"...my brother got there first... now he is always talking about the hereafter, end of the world stuff and how dua’s really do help, especially with keeping away evil and magic."
Sounds like my younger brother. 100% brainwashed. I hardly talk to him now (not because we fell out or anything but I've just slowly become more and more distanced from him over time).
"A few years ago I tried to learn more about Islam myself, as I’m getting on a bit now and thought I should start getting more devout like my brother. I’ve opened a fucking Pandora’s Box."
I think that's true for lots of us here!
"I’m now thinking, what a waste my life has been."
My main thought is that I was born into the wrong family/community. I wish so much I was born into a western atheist family. It sounds horrible since most of my family are not bad people but they are so different from me it's like the difference between night and day. I don't fit in with them at all.
"One good thing is that I never got married because I could not go along with the arranged marriage thing, so I don’t have to worry about any kids being burdened with this crap."
I'm not married either. I have a great personal grudge with the idea of arranged marriages. I've seen first hand what a bad idea it is. My mother got stuck with a guy like my father. Arranged marriages are just so stupid. How the fuck can you marry someone you don't even fucking know? Because Islam (and other outdated cultures) don't allow girls to have a social life the girls can't possibly find a man so arranged marriages became the solution to the problem they created in the first place. Well fuck that.
I've thought for a long time that if I had kids do I really want them exposed to muslims (even if it's my own family)?
"I hope I can contribute to the site more in the coming future, even though it feels like most of you here are in your late teens."
I'm 30
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Anyway I hope my reply helps you feel at ease a little.