Hi Crois. You have definitely been through two major life events very quickly. Both moving house & a new job are right up there behind number 1 with the death of a loved one.
You have virtually answered your own questions as you were writing.
You ARE good enough. You ARE smart , you ARE capable of doing this job.
I understand the negativity and sabotage thoughts that are going through your head , but you got this job for a reason girlfriend.
One of the things that I have done wrong at work , which I regret, is not addressing issues as they came up.
I would go home , stew on it , tell myself I would sort it tomorrow, but I never did.
It would eat away at me until my stomach was in knots.
But you know what? That other person didn't give a flying f and I bet they slept well at night. Unlike myself!
Do yourself a favour and get it sorted sooner rather than later.
Don't second guess yourself sweetheart . You ARE GOOD ENOUGH