Gramatik und Rechtschreibung Korrektur bitte.

Good morning
may introduce me myself my name is Enes Zafer and I am 22 years old.
before I started studying, I attended a two year Business school and successfully completed it as the third best student.
Now I am studying since 2014 in TH Cologne campus Gummersbach. I started studying in Gummersbach because my sister recommended it to me.
Until today I had some work experience. I worked as a worker assistant in Montaplast for a few weeks. I have been allowed to operate some machines otherwise I often cleaned the floor or machines. I worked in Metalsa for 2 month as a worker assistant too. I had to attach car parts and frames and send them with a computer program for further processing. As I worked in these Factories I noticed that a simple work as a worker assistant isn’t right for me because the work was monotonous and boring after that I decided to study. I decided to study as a mechanical Engineer with business because many people told that a mechanical Engineer with business can earn lots of money.
Now I am studying since 2014 in TH Cologne campus Gummersbach. After I got my bachelor, I would like to gain first work experiences and afterwards I would like to start a further education to can be a state-recognized motor vehicle inspector. As a plan B, I would also travel abroad and possibly work abroad as an engineer. In Turkey, but also Dubai, an option would be to work as an engineer.