Bitte um eine Korrektur um meinen kleinen Texte :)

[sFanta]

Hallöchen aller seits,

ich bräuchte eine Korrektur und sowie eine Meinung was ich verbessern könnte an meinen Englisch Skills. Danke im Vorraus

I did my second practical training in a bookstore as a bookseller from 25th, August till 5th Septembre. It was very interesting to work there. I got in this two weeks much work experience. My work started at 9:30am and ends at 16:00pm. The first what i did is open the door and drag books outside infront of the door. Then I checked with cards if books are available or not. If they are dont available I ordered this books on a Computer. After this I went to the post to send letters and packets away and then i went to the letterbox to take letters and packets. I had often to dragging books from the warehouse to the store. Then I had my break at 12:00 for a half-hour to eat something or to relax. After the break I worked in the office from my boss to enter books in his bookstore in the internet baucause he sell very old books in the internet to. I like to sit in the office because it was never boring there I got a task from the boss and have made them fast and correctly. I dont like to dragging books from the warehouse to the store because it makes back problems and if I did my tasks in the store I dont had anything to do there it was so boring.

[Delfino]

Hallöchen allerseits,
ich bräuchte eine Korrektur und sowie eure Meinung
was ich an meinen Englischkenntnissen verbessern könnte.
Danke im Vorraus

From the 25th of August until the 5th of September 2014 I did my second practical training at a bookstore.
It was very interesting to work as a bookseller for two weeks.
During this time my work started at 9:30 am and finished at 4 pm.
My first task after opening the shop's doors was to place the displays of books outside.
Then I checked the availabilty of books in the store.
In case a book was not available I ordered it using a computer.
Afterwards I went to the post office to send off letters and packets.
Subsequently I took the received letters and packets out of the letter box.
The stock had to be refilled regularly with books from the warehouse before I had my half-hour lunch break at noon.
After the break which I used to to relax and eat something I worked in the office of my boss.
Because he is also selling very old books online, I had to enter them into his bookstore on the internet.
I enjoyed my time in the office, because it was never boring there.
The tasks were were given by boss on an ad hoc basis, and I performed them properly and quickly.
I did not like to drag the heavy stacks of books from the warehouse to the store, because it caused me back pain.
After finishing my tasks in the shop, it was really boring.

I'd suggest you do not use this text in any application
as the level of detail (e.g. actual working hours etc.) is not appropriate,
and it should be focused more on the transferable skills you gained there.

I hope you can see how I changed the sentences to avoid the repetition of phrases.