[quote=@Caits]
<Snipped quote by hatakekuro>

It's okay. I understand.

[i]sighs[/i]

I think it's mainly just being tired and sick of being...taken advantage off. It's just...I'm sick of feel like I have to be the responsible one that I have to be the one to help my parents and grandmother while my twin brother just gets to be a complete and total jack ass, taking advantage of our parents and generally being a complete dick. But if I say anything I'm the bad guy. 
[/quote]

I think that's the heart of it. Caits speaking as someone who's had to deal with difficult families I can say without any doubt that they can be hell. If anything this is an emotional issue that's starting to take its toll on you and I dare say that enough is enough. You bottle this up too and that's definitely doing damage too. Is there any way you can find a councilor or therapist at all? One that is going to sit down and listen and not give you self help bs or try to repair relationships from the get-go? I can tell from experience that those two will only do more damage.