I hope everyone is doing great! I hope someone can offer some tips. 

I've got a job at a global firm about three months ago. Before I started, I knew there will be challenges and hickups in the road due to complexity of the work role, but all of that combined with my anxiety now seems just unbearable especially when there's stress and preassure. 

I literally overthink everything. How I am with people, how well I perform at work, I'm afraid of being confident, because then I think i might be seen as too cocky and arrogant... It's just this ongoing battle with my thoughts every day. 

Recently I had a fallout with one of my bosses, because I overslept one of the mandatory meetings. He sort of confirmed my worrying of underperforming and constantly feeling I'm not meeting their expectations, because he was really mad and expressed real dissaproval of the way I supposedly been acting. 

The thing is, sometimes I'm just completelly oblivious of how my actions are seen in the eyes of others. I really wanna do my work well, but sometimes I see some things from a completelly different perspectice. In this particular case, I haven't got clue I did something so very wrong. I feel really traped in my fear of what's gonna happen, overthinking everything, having constant fear of underperforming...

Has anyone has similar experience and would be able to offer some advice?