Have you been to the doctors, you sound depressed to me or getting there.
I dont think sympathising about others plight makes your own situation any less hard. Women find themselves unable to work for all sorts of reasons, to write off all women who do not support themselves as unworthy of your sympathy and duaas is majorly off.
Many women have not had the oppurtunities you have had, I know for a fact I am very lucky and priviliged for the oppurtunities I have had and taken. Education is sadly not available for all at the same level, nor are jobs for that matter.
There are people worse off than you, and it does do one good to look at those who are worse off than you on occasion to put into perspective what you do in fact have, a good home, food to eat, nice clothes to wear, a job to go to, friends, family, children to love and pray for you after you die.
So OK they occasionally bicker, but children do that and maybe just maybe they can feel your resentment towards them, children are very very perceptive.
My eldest (who's five), told her best friend at school that she didn't have a daddy anymore, and poor mummy has to do everything all by herself.... I've never said that in front of her, I dont particularly mind doing everything by myself, but clearly my child has noted and been deeply affected by it.
If your feeling this way temporarily hopefully it will pass, if your like this all the time, perhaps you should seek medical assistance.
My mum has been getting increasingly upset about my situation, altho I do get very upset about it (who wouldn't lets face it), but I do think that this temporary affliction was never meant to pass me by, and I am very grateful that it wasn't worse alhumdulillah. And honestly as to the question why me, well why not? Allah tests those of his worshippers he chooses, and it could be a lot worse it could be a lot better of course but hey I have that to look forward to and in the meantime I can be happy with that which I have now subhanallah, alhumdulillah, allahuakbar.