Nothing feels the same. What do I do?

I have nowhere/no one to talk to about this. The only people I could comfortably tell are now no longer in my life.

I got into a fight with my parents about uni early last month, and ever since then, my relationship with them has been extremely off. They weren't supportive of my choices, and I feel like I'm just a disappointment to them...unlike my sisters. They seem to think everything's fine, but everything feels wrong on my end. I don't know how to get past it. I love them so much, but it's like I've just put up a massive wall between myself and them. I can't even tell them how I feel because it'll only get worse.

On top of that, things ended with the guy I was and am still in love with and I miss him more than anything. Seeing and being with him made me feel like everything was okay.

Everything hurts and I have no one to talk to.