Ive struggled with anxiety most of my adult life ( most of it comes from a really horrible work experience that I had about 5 years ago) and every since I have felt like I am never safe in my job.

Ive been working this currently GREAT job for the past year (just made it one year today actually). No complaints from management (Hell they even gave me a 3k raise in April) and yet...I fear that everything I do is going to get me fired,

Now, management has said nothing or even hinted at anything of the sort, but yet I constantly feel like this could be it. My next error or mistake is going to be the one to boot me out. Example is this: We are going to a place to do work ( trying to be vague so I cant be pinpointed, sorry!) Last time we were here they had this ladder. We couldnt find it this year, asked around and no one had it. I asked someone and they said "Oh yea, its in xyz" I didn't have access to there at the time so I took thier word for it and told my supervisor. I gain access to it today and its not there. Now I had to let them know that we dont have it and I feel like its MY FAULT.

I tried medications, therapy , the whole thing, but nothing has every worked for me. For the past 7 months Ive stopped my meds and you know what? I was doing a good job managing it all, barely any panic attacks and I was proud of myself. But it was the last three weeks that got me so freaking spooked I cant take it anymore

Is there anyone I can give myself some certainty that Im going to be okay and they are not looking for a way to fire me?