Re: How to forgive parents....
Zash, you need to forgive your parents and move past this. Go to your counseling appointment and talk your heart out. Until you forgive them, you wont be able to really be there for them. Your first priority is to make it out of this ordeal in a healthy way. And you will, Inshallah. :)
Some people might not agree with this advice but Im going to put it out there because I want to. Have you thought of meeting someone nice yourself to marry? You should consider making friends...regardless of how your parents feel about it. I grew up in the US and didnt have a single non-Muslim friend until college. I also didnt go to my Muslim friends' homes without my mom. Having friends was too stressful so I also thought about not even trying to have them. But how is that going to make my life any better? You neeeeeeeeed to make friends...at work...at the mosque...anywhere. Be social. Find local activities to participate in, take a class, do something aside from coming straight home from work and thinking about what is going on there.
As for your parents. Im one of 4 girls...there are no boys in my house either. And initially my parents panicked a lot when us girls started getting married. I could see it. But all they needed was reassurance that they will be taken care of. Make sure the man you marry understands your responsibility towards mom and dad. Its not hard to find either if you're upfront about it. My fiance was told since day 1 by me that no matter what happens, I share responsibility of my parents with my sisters and he cant stop me from helping them financially, emotionally, mentally, whatever way they need it. He knows and he actually helps me now...of course I have to do the same for him too.
I think you need to get out of the house more and meet people.
Inshallah, things will be fine.