An email about work experience

Dear David:

As I told you, yesterday was my first day in my new work job/career as a police officer. My day started early at 6 a.m, I arrived at the police station and met my new partners, they were very nice with to me. After the presentations my first task was to receive calls from citizens in the office during for 4 hours, this kept me entertained but the hours passed slowly. A At mid-morning we took a break to drink a coffee and get a some rest.
When we returned to the work we went out on patrol according to the different warnings alerts and calls.
At the end of the day I returned to home very tired but satisfied because I have begun to work on what work/(a job) that I like.

Regards and I hope to hear about you.