More often than not if a person has taken dowry he is always guilty and hesitates legal action.
If so, then you are culpable of your actions. All reasons you have stated comes in marital environment and you're making a moutain out of mole and pleading a releif in family court will be difficult to come by.
You have to make amendments and hopefully she will turn around.
Or else some lawyer will be living of your case. Good luck.