(Hi, pay attention to capitalize "I" even in conjunctions.  Also, look for using "to" with verbs.)  First of, I understood everything perfectly.  I only made corrections to make it sound more natural!

My job in social service.

Hi I'm new here, and I will try to write in english.  I speak spanish.

Well, I want to tell you about my day. It's hard for me to wake up early, because I have problem getting to sleep.  I don´t know what the name  is in english, but in spanish the name is disania (it is insomnia in English). My problem is I have to wake up early because I have to cross all the city to get to my job.

I have been working for 1 month in doing my social service. My work there is to check the invoices (factura in spanish), and the process of the contracts.  Sometimes it is boring for me. In my free time, I read notes about technology, marketing, and news.
Once of my problems with my service, is that I dont have a computer, and i have to do my work on my co-worker's computer. My boss is a good person, and my co-workers also. I go from Monday to Friday, for only 4 hours per day.