It's my first day of being out of training in my job and I feel completely lost and alone, my anxiety is playing up really badly.

I've been at the job for 4 weeks or so but there was so much to learn so quickly and now my trainer is on holiday which is why I'm alone. 

I still have my workload but I feel like I don't have that safety net anymore - I had to give my first stats to the team and I didn't know what to day so I was a stuttering, high pitched mess. Please tell me others felt this way and everything turned out OK in the end