Is it time to leave?

I’ve worked as a medical assistant for 4 years and have been with my clinic for 3. It’s a small clinic which I used to think was great but everyone else besides me has been there for 7+ years. I don’t feel like I fit in at all there. They all bond and laugh together and talk about their personal lives or politics and I just… don’t have the mental space to do small talk when I’m working.

I recently fucked up and I’m pretty sure they are going to fire me and I have heard co-workers say things like “it’ll take her a week just to clean out her desk” the person who said this was the one person I thought kinda understood me but now I feel so down. I overheard them all talking about me yesterday and spent all night crying about it.

We have a crazy busy clinic today and I felt awful about calling out so now I’m stuck working my ass off while wondering when they will just end my fucking misery. I wish I could just quit but I work for the biggest healthcare entity in the state I work in.