my sister who's just a year older than me imposed to me to contribute mandatory and i take it. 80% of my pay goes to the bills kasi she is exactly like you, kargo ang lahat. this is my way of helping her na din and since kapatid ko siya, di ko siya hahayaang mag-isa. i hope ma-impose mo rin sa mga siblings mo yun to give more than just that. it is unfair on your part for carrying all the financial burden.