Fate and some other thing

There is a question that has been plaguing me. Can fate be controlled?
People have blind faith in gem stones, a talking parrot picking out a card that would predict your future, tarot cards that are supposed to tell you how your future will shape up but my question is that despite all these manifestations of the human obsession with wanting control over the unknown (fate), can we actually manage to do so?
The philosophy of whatever happens, happens for the best is mildly baffling me.
If it is indeed true, why are certain people beggars? Why does suffering exist?
If someone looses their parents or spouse, is it for the best?
A recent discussion opened my mind to another belief that we all get what we deserve, which explains the concept of suffering better.
There is another possibility that while we have been falsely lead into believing that our actions control our fate, our fate is probably predetermined and our actions have no implications over it.
I believe that centuries ago, when the world must've been a haven for the dark and the twisted, some man probably to lessen the mean behavior of man kind, came up with this concept to make the world a better place to live in. The fear of your present changing your future is bound to get a few people to move away from their vile ways.

Messy.

So I am sitting on my window, staring at pigeons and marvelling at their love for nooks and crannies, when I feel a tear on my cheek. I don't even know how I started crying. All I know is once I did, it didn't stop.

Since the last couple of days, I've become an awful lot crankier, ready to snap at people for no reason at all. I have started to analyse every little thing about every person (significant or insignificant doesn't matter). I can't look past certain things. Weird details; somethings which don't even matter, have enveloped me and my thinking capacity.
Just now, I snapped at someone, AGAIN.
I can see a fault in me.
I know how to rectify it, exhume it. But I can't.
And I suppose that's how life works?

I can't trust, The one person that I really need to. It isn't exactly about "trust you with my secrets" trust; Not even "I have doubts over you" trust. It's something more complex. It's something like I don't trust someone to be there. I don't trust a person to actually hold me when I need that. I don't trust a person to stay.
Yes that's all that my problem is.

And well, I know this piece might be a real rag but I had to write. I had to write to solve out the tangled ball of yarn that my brain has been processing over the last month.

Feels better.