<human>: Can you provide a brief rundown of the text in within 3 sentences?

Every time I get a phone call or go to visit them it completely destroys me inside. They'll talk about how they can't pay their bills, about all their doctors visits, and about how they didn't do anything today (I literally can't remember the last time they did anything exciting or productive for themselves). They'll apologize for not being better parents growing up (the past is the past, stop fucking bringing it up). My dad only, ONLY talks about politics (Yes i'm angry about the political climate in this country but it's like you're barely a fucking person. Stop talking about shit you hate and talk about what inspires you). They're both overweight and have numerous health problems, and the still continue to eat like shit and drink a massive amount of coke. 

They're both so sweet, and I know that they're doing the best they can (and did the best they could with our big family at the time), but I can't fucking take it anymore. I called my Dad today to wish him a happy birthday and the phone call was just so fucking depressing. He sounded better when I said I was coming to visit this weekend but i'm dreading it. It's not like i'm not trying, but I do so well when I forget about my family and my past. After the call today (and many other days) I just felt like all the progress i'd made in keeping sane went down the drain. 

It's 5am and i'm failing nearly all my classes and I couldn't concentrate on anything today. I've eaten fast food 3 times today started listening to depressing music again. I'm well aware that I should "do the best I can" and "love them the way they are" and that "you can't run away from your problems" but i'm so fucking tired of
<bot>: My parents are real nice and I do my best to love them but they piss me off and trigger my depression and I am a much better person when I just forget about them.