My parents expect more from me but very little from my sister. Shes gotten into a lot of trouble and they always expect me to take care of her and deal with her. Anything I can do to change this?

I understand that your are getting a feeling of being a little neglected by your family members and your attention is being divided between you and your younger sister. A situation like this can certainly give you a feeling of frustration and anger. Elders are usually asked to behave in a more responsible manner when compared to our siblings. Being an elder definitely asks for a lot of sacrifices but also it gives us a sense of pleasure and also gives a lot of benefits indeed. Well, it has happened so in my case. We gotta try and make a balance between the two.

You could try reminding your parents that THEY are the parents in this situation. THEY need to address her behaviour - not YOU. Yes, this concerns your sister but they are the ADULTS here. You are a sibling. The adults need to enforce their position of authority. It is very unfair of your parents to expect you to assume authority over your sister. You have not had the same life experience as your parents and they are much more experienced in everyday life situations. This will be difficult to do, but, you need to tell them to start acting their age and be responsible for their other child. You do not have the same life experience and may not always be able to guide your sibling in the best way because of your inexperience. Again, I know it will be difficult but you need to speak up and tell them to start being more responsible parents. Afterall, if you really wanted to be a parent wouldn't you have found a partner and had your own children to be responsible for??