Work rants? (Long)

I have no idea how to handle this so I'll just vent. So to start off, I have anxiety issues. Also, I have an undiagnosed heart condition that my cardiologist is trying to figure out for the last couple months. Basically I'm under very strict doctors orders not to stress. Stress lowers my blood pressure and it causes me to faint and yada yada. I've worked at this gym for the past 6 months. I absolutely cannot stand the company, or my coworkers. But I LOVE my members. My last day is Friday and I'm very much looking forward to it because of the crap from today.

The company decided to reduce my hours and make some very dumb changes. I work the PM shift. I have 3 people on the shift with me and 2 more come in when the 3 leave and before I go. Everyone is driving me NUTS. The lack of give a damn is pathetic. Yes. I have only days left. But it's a damn mess. I worked out on the floor keeping everything clean for 4 months and everyone loved it. The gym was spotless. I got moved up to the front desk 2 months ago and I've gotten NOTHING but complaints about the new guy. And anytime I approach him, he has a ridiculous smart ass attitude and then throws a fit because he should get his way because of "gay privilege". Now he works up front, he doesn't think anything is his job. My shift leader? She's too busy arguing with her cheating husband to do anything. My assistant manager? She's oblivious to everything. I've tried talking to her only to be told "Not to spread mess." My manager is rarely there and doesn't have the balls to do what needs to be done. The number of complaints have only gone up, and people are canceling memberships left and right. I love this gym. This is killing me. So today I come in and they leave me alone for 3 hours with an untrained guy so I'm running around doing everything I can with my head cut off. Finally 2 more come in, only to sit in the break room for 2 more hours. So finally I get fed up and leave. I take my break and go eat which forces them to actually work so they began ignoring me when I get back. Later on, a favorite member of mine comes and tells me that the men's restroom is disgusting and out of paper towels. So I tell the ONLY male there, the gay guy, what the man told me and be tells me

"You can tell him where to find the paper towel key and he can do it himself"

So what did I do after dealing with that attitude EVERYDAY for the last 2 months? I went and told the man what the guy said. He the guy didn't like it at all. Well the entire PM staff was mad I did that. Oh well. Whatever. No one has to deal with that pisspoor attitude but me. Every time I tell him to do something, and I am above him so he's supposed to listen to me, he has a smart as remark and he never does it, and if he does, it's at least and hour later. So I get assigned to clean a section of the gym at 10 when the rest of the staff gets off and the overnight people come in. I get off at 11. So I go clean around 10:15. And here comes the overnight girl. Me and her haven't liked each other since high school and I honestly dk what her problem is. I've worked there longer than her so idk why she decided to try to boss me around today. So I went into a tanning room, locked the door, and texted my manager. I told her I was about to have a panic attack and about how bad was chest was hurting and I asked to go home. I have not even half an hour left. So the manager okay'ed it and I went to go get my stuff and clock out. Then the overnight girl flipped on me because I didn't take the trash out on my way out. She cussing and screaming in front of members. I say "I have the managers approval and a medical condition. Tell whoever whatever you want because I'm leaving. Have a good night". I get to my car and have a panic attack. I call my grandma to come pick me up. Well my aunt tagged along. And she went to go tell the night girl to chill out because I do have a heart condition that my paternal grandma died of. And the night girl literally said she didn't care that I had a heart condition and she didn't care if I had a heart attack because she doesn't give one fuck about me. So there was a cussing match between the two. My grandma went to get my aunt and we left. I ended up having an asthma attack on the way back and it's been a mess. I feel like everything I worked for, is gone. The gym is a mess and the members are looking to me to fix it but I can't do everything alone. I'm not even supposed to be stressing. And then the night girl is constantly texting my coworkers and past coworkers saying the most awful of lies. This girl runs her mouth about everything. But she manages to get out of trouble every time. I've known my shift leaders husband was cheating for months, and I let my shift leader know. I told no one else. The night girl finds out from her friend, who the guy was talking too, and all the sudden THE WHOLE STAFF KNOWS. But somehow she still convinced the staff that it was me who spread the gossip. Even tho I knew for months and no one knew but the night she finds out, so does the rest of the staff. It's ridiculous! How can you be aware of someone health being so awful, and still be so careless. And the to act the way they act? Come onnnnnnn. End of rant.