Dear Ojroo -- How very callous of me not to offer my sincere sympathy on the loss of your brother. Due to your focus on your sister, that quite escaped my attention. I am sure that you must be hurting, too, from this awful loss.

I think Sabau has hit the nail of the head -- it is time for self-care for you. It is not easy being a teenager (if I recall at all correctly), and you are assuming a lot of responsibilities. I hope you can get some counseling for yourself, too. It can be so helpful just to be able to talk with a sympathetic someone for a bit.

I also think Sabau has some wise ideas about you might engage your sister more constructively.

Best wishes with all this. You will keep us posted, won't you?