It depends mate... very subjective and situational based topic...
I and my wife are alhamdulillah doing just fine after 12 yrs and 2 kids (its a challenge, but its doable, raising ie)
I have toxic family members/khandaan etc, but i made 1 thing clear to my wife, nothing and no one comes before me and her, not parents, not siblings, nor kids, nor extended family or friends... mantain respect and things in tact between ourselves as #1 priority, everyone and everything comes secondary. And alhamdulillah, it has kept us together, obviously we have little issues or ups and downs like any normal couple would, but we work on it and get through it.
Financially, alhamdulillah again we are on same page, we have set certain goals and limitations and stay within our boundaries and know our financial reach. Alot of couples cant get past the my money ur money issues etc, need to realize its OUR money once married.
We give each other the due space, time, and attention, and dont have bloated egos... if one can suppress the ego and be flexible a wee bit, that also goes a long way. And finally, dont argue with the woman unneccessarily as it will and can balloon unexpectedly, so just avoid or give in asap.
Wishing you all a happy and blessed time with your respective partners.
ps: did u ever notice how super nice and respectful you are to strangers or friends etc, but at home for some reason you cant spare a bit of that kindness or chance to your loved ones? drop the case/issue, and give ur partner/parent/sibling a chance... an honest chance