First day at work

I started my first day of work at my new job today and I feel extremely exhausted even though I haven't started any 'real' work yet. Today was just orientation, talks and getting some administrative details filled correctly. Perhaps it's the 45 minute traffic crawl in the morning and evening. Or all that walking from the external carpark to the office 12 minutes each way. Or even lack of sleep from all the anxiety last night (I think by the time I really fell asleep, it was already 1.30am). Whatever the reason is, I am ready to go to bed now that I think I will sleep so soundly tonight. Goodnight! I need to recharge for another exciting day ahead!